Pub Date : 2009-08-15DOI: 10.1111/J.1699-0463.1974.TB03839.X
B. No̸rgaard-Pedersen, E. Dabelsteen, C. Edeling
By means of indirect immunofluorescence (IF) and indirect immunoperoxidase (IP) technique the presence of α-foetoprotein (AFP) has been demonstrated in foetal liver tissue as well as in liver tissue from two cases of hepatoblastoma. In both cases of hepatoblastoma the serum AFP were determined by rocket immunoelectrophoresis. Removal of the tumours caused a rapid fall in the concentration of serum AFP.
{"title":"Localisation of human alpha-foetoprotein synthesis in hepatoblastoma cells by immunofluorescence and immunoperoxidase methods.","authors":"B. No̸rgaard-Pedersen, E. Dabelsteen, C. Edeling","doi":"10.1111/J.1699-0463.1974.TB03839.X","DOIUrl":"https://doi.org/10.1111/J.1699-0463.1974.TB03839.X","url":null,"abstract":"By means of indirect immunofluorescence (IF) and indirect immunoperoxidase (IP) technique the presence of α-foetoprotein (AFP) has been demonstrated in foetal liver tissue as well as in liver tissue from two cases of hepatoblastoma. In both cases of hepatoblastoma the serum AFP were determined by rocket immunoelectrophoresis. Removal of the tumours caused a rapid fall in the concentration of serum AFP.","PeriodicalId":6953,"journal":{"name":"Acta pathologica et microbiologica Scandinavica. Section A, Pathology","volume":"35 1","pages":"169-74"},"PeriodicalIF":0.0,"publicationDate":"2009-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86962244","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2009-08-15DOI: 10.1111/J.1699-0463.1974.TB03830.X
J. Rygaard
{"title":"Skin grafts in nude mice. 2. Rat skin grafts in nude mice of three genetic backgrounds (BALB-c, C3H, C57-BL). The effects after preparation by thymus grafts.","authors":"J. Rygaard","doi":"10.1111/J.1699-0463.1974.TB03830.X","DOIUrl":"https://doi.org/10.1111/J.1699-0463.1974.TB03830.X","url":null,"abstract":"","PeriodicalId":6953,"journal":{"name":"Acta pathologica et microbiologica Scandinavica. Section A, Pathology","volume":"40 1","pages":"93-104"},"PeriodicalIF":0.0,"publicationDate":"2009-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81264084","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2009-08-15DOI: 10.1111/J.1699-0463.1976.TB00136.X
T. Ledet
A quantitative morphological study, at light microscopical level, of hearts from young diabetics and nondiabetics was performed. The groups were comparable with respect to sex-ratio, age, heart weight and blood pressure. Findings in the hearts were as follows: In arterioles in which the luminal diameter ranged between 15-50 mu, a strongly PAS-positive stained vessel wall occurred at a higher frequency among diabetics than among non-diabetics (75 per cent respectively 33 per cent). The PAS-positive structures, however, occupied the same area of the vessel wall in the two groups. In arterioles from diabetics, the number of cells in tunica media was increased as compared with that in non-diabetics (2 p less than 0.01). The amount of perivascular connective tissue was also increased in the diabetics (2 p less than 0.01). There was no indication of an endothelial cell proliferation in the PAS-positive stained vessels from diabetics and non-diabetics. The wall of the capillaries was not thickened and it was not more PAS-positive in the hearts from diabetics than in those from non-diabetics. Moreover, the number of capillaries per square millimeter of heart muscle was the same in the two groups of hearts. In the present light microscopical study, the diabetic micro-angiography of the heart was demonstrable in the arterioles. The capillaropathy known to occur in other organs was not present in the heart muscle from patients with diabetes of long standing.
{"title":"Diabetic cardiopathy. Quantitative histological studies of the heart from young juvenile diabetics.","authors":"T. Ledet","doi":"10.1111/J.1699-0463.1976.TB00136.X","DOIUrl":"https://doi.org/10.1111/J.1699-0463.1976.TB00136.X","url":null,"abstract":"A quantitative morphological study, at light microscopical level, of hearts from young diabetics and nondiabetics was performed. The groups were comparable with respect to sex-ratio, age, heart weight and blood pressure. Findings in the hearts were as follows: In arterioles in which the luminal diameter ranged between 15-50 mu, a strongly PAS-positive stained vessel wall occurred at a higher frequency among diabetics than among non-diabetics (75 per cent respectively 33 per cent). The PAS-positive structures, however, occupied the same area of the vessel wall in the two groups. In arterioles from diabetics, the number of cells in tunica media was increased as compared with that in non-diabetics (2 p less than 0.01). The amount of perivascular connective tissue was also increased in the diabetics (2 p less than 0.01). There was no indication of an endothelial cell proliferation in the PAS-positive stained vessels from diabetics and non-diabetics. The wall of the capillaries was not thickened and it was not more PAS-positive in the hearts from diabetics than in those from non-diabetics. Moreover, the number of capillaries per square millimeter of heart muscle was the same in the two groups of hearts. In the present light microscopical study, the diabetic micro-angiography of the heart was demonstrable in the arterioles. The capillaropathy known to occur in other organs was not present in the heart muscle from patients with diabetes of long standing.","PeriodicalId":6953,"journal":{"name":"Acta pathologica et microbiologica Scandinavica. Section A, Pathology","volume":"33 1","pages":"421-8"},"PeriodicalIF":0.0,"publicationDate":"2009-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85508485","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2009-08-15DOI: 10.1111/J.1699-0463.1971.TB00514.X
F. Bro-Rasmussen, B. Jensen, O. Hansen, A. Ostergaard
At different stages of gestation, 104 mice were treated with fluorodeoxyuridine (FUDR). 34 pregnant mice served as controls. The experimental mice were examined at varying intervals after the FUDR injection. At term, the young exhibited the malformations of the limbs and skull so well-known after administration of FUDR. In addition, there was an increased number of resorptions. 24 hours after the injection on the 9th—12th day of gestation, vascular dilatations and fresh haemorrhages were found at the sites of predilection of malformations. Foetuses removed 2 or more days after the injections showed characteristic, saccular haematomas in the limbs and tail as well as flat, widespread haematomas in the skull. At increasing intervals after the injections, the haematomas decreased in number and were rarely present in foetuses at term. As the number of haematomas decreased, the number of malformations increased. Daily laparotomies, from the 12th to the 18th day, on 5 mice treated on the 11th day with FUDR revealed extremity haematomas which disappeared on the 13th—18th day. Electron microscopic pilot studies of 2 foetal limbs showed, 24 hours after the injection of FUDR, red blood cells in an extra-vascular situation. The control mice had 354 normal foetuses and 8 per cent spontaneous resorptions. This study, which was a screening experiment, showed that FUDR induces vascular injury with haemorrhages and formation of haematomas, resulting in congenital malformations. The vascular injuries are interpreted as the primary action of FUDR on the cellular level.
{"title":"Fluorodeoxyuridine-induced malformations in mice. Studies on the early stages of teratogenesis.","authors":"F. Bro-Rasmussen, B. Jensen, O. Hansen, A. Ostergaard","doi":"10.1111/J.1699-0463.1971.TB00514.X","DOIUrl":"https://doi.org/10.1111/J.1699-0463.1971.TB00514.X","url":null,"abstract":"At different stages of gestation, 104 mice were treated with fluorodeoxyuridine (FUDR). 34 pregnant mice served as controls. The experimental mice were examined at varying intervals after the FUDR injection. At term, the young exhibited the malformations of the limbs and skull so well-known after administration of FUDR. In addition, there was an increased number of resorptions. 24 hours after the injection on the 9th—12th day of gestation, vascular dilatations and fresh haemorrhages were found at the sites of predilection of malformations. Foetuses removed 2 or more days after the injections showed characteristic, saccular haematomas in the limbs and tail as well as flat, widespread haematomas in the skull. At increasing intervals after the injections, the haematomas decreased in number and were rarely present in foetuses at term. As the number of haematomas decreased, the number of malformations increased. Daily laparotomies, from the 12th to the 18th day, on 5 mice treated on the 11th day with FUDR revealed extremity haematomas which disappeared on the 13th—18th day. Electron microscopic pilot studies of 2 foetal limbs showed, 24 hours after the injection of FUDR, red blood cells in an extra-vascular situation. The control mice had 354 normal foetuses and 8 per cent spontaneous resorptions. This study, which was a screening experiment, showed that FUDR induces vascular injury with haemorrhages and formation of haematomas, resulting in congenital malformations. The vascular injuries are interpreted as the primary action of FUDR on the cellular level.","PeriodicalId":6953,"journal":{"name":"Acta pathologica et microbiologica Scandinavica. Section A, Pathology","volume":"28 1","pages":"55-60"},"PeriodicalIF":0.0,"publicationDate":"2009-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84503644","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2009-08-15DOI: 10.1111/J.1699-0463.1977.TB00419.X
L. Boquist
Starved animals were sensitive to alloxan, whereas a more or less inhibitory effect towards alloxan was observed in fed animals, and in starved animals pretreated with glucose, mannose or fructose, but not in those pretreated with galactose. The islets of starved controls possessed larger B-cell mitochondria than those of fed ones. The earliest B-cell changes in the alloxan-treated animals were localized to the mitochondria which showed swelling, and disruption of inner and occasionally outer membranes. Later, many mitochondria were disintegrated, and the endoplasmic reticulum and Golgi complex disorganized. The secretory granules were preserved, although sometimes with atypical configuration, in degenerating but non-necrotic B-cells, suggesting that insulin stored in granules is not released until the cells are necrotic. Finally, frank necrosis was seen in some B-cells, whereas others were unaffected. The Ca2+-precipitation studied by pyroantimonate technique and x-ray analysis differed in the B-cells of the alloxan-treated animals from that in the controls; the former animals exhibited no or only sparse precipitation in mitochondria and secretory granules, but a rich precipitation in the cytoplasmic ground substance, whereas the precipitation in the controls mainly was localized to mitochondria and secretory granules. The primary site of alloxan action in the B-cells is believed to be localized to the mitochondria.
{"title":"The endocrine pancreas in early alloxan diabetes. Including study of the alloxan inhibitory effect of feeding and some hexoses.","authors":"L. Boquist","doi":"10.1111/J.1699-0463.1977.TB00419.X","DOIUrl":"https://doi.org/10.1111/J.1699-0463.1977.TB00419.X","url":null,"abstract":"Starved animals were sensitive to alloxan, whereas a more or less inhibitory effect towards alloxan was observed in fed animals, and in starved animals pretreated with glucose, mannose or fructose, but not in those pretreated with galactose. The islets of starved controls possessed larger B-cell mitochondria than those of fed ones. The earliest B-cell changes in the alloxan-treated animals were localized to the mitochondria which showed swelling, and disruption of inner and occasionally outer membranes. Later, many mitochondria were disintegrated, and the endoplasmic reticulum and Golgi complex disorganized. The secretory granules were preserved, although sometimes with atypical configuration, in degenerating but non-necrotic B-cells, suggesting that insulin stored in granules is not released until the cells are necrotic. Finally, frank necrosis was seen in some B-cells, whereas others were unaffected. The Ca2+-precipitation studied by pyroantimonate technique and x-ray analysis differed in the B-cells of the alloxan-treated animals from that in the controls; the former animals exhibited no or only sparse precipitation in mitochondria and secretory granules, but a rich precipitation in the cytoplasmic ground substance, whereas the precipitation in the controls mainly was localized to mitochondria and secretory granules. The primary site of alloxan action in the B-cells is believed to be localized to the mitochondria.","PeriodicalId":6953,"journal":{"name":"Acta pathologica et microbiologica Scandinavica. Section A, Pathology","volume":"28 1","pages":"219-29"},"PeriodicalIF":0.0,"publicationDate":"2009-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83268742","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2009-08-15DOI: 10.1111/J.1699-0463.1981.TB00194.X
T. Landaas, Tore Godal, PER F. Marton, Stein Kvaløy, Ruth Langholm, Tore Lindmo, OLE G. Jørgensen, Herman Høst
Eighty-three non-Hodgkin lymphomas classified according to the Kiel classification have been studied with regard to surface immunoglobulin (sIg) on cells in suspension and cytoplasmic immunoglobulin (cIg) by the peroxidase anti-peroxidase method (PAP) on formaline-fixed tissue sections. Fifty-six out of 66 examined (i.e. 85%) revealed a monoclonal staining pattern for sIg, whereas 37/70 (53%) gave a monoclonal staining pattern for cIg by PAP. The methods combined gave a monoclonal staining pattern in 73/83, i.e. in 88%, of the biopsies tested. The discrepancies between the two methods were largest in centroblastic/centrocytic and lymphocytic lymphomas. With regard to the light chain staining patterns, complete agreement between the two methods was obtained in the 20 cases that allowed such analysis to be made. This suggests that the specificity of PAP, as carried out in this study with reagents purified by immunoabsorbent techniques, is satisfactory. On a basis of heavy chain isotypes centroblastic/centrocytic, lymphoplasmacytoid, and immunoblastic lymphomas could be divided into distinct immunological subgroups. In four biopsies the sIg heavy chains were mu + delta, whereas mu + gamma chains were detected by PAP. This finding may be relevant to the mu leads to gamma switch known to occur during normal B-cell differentiation. Immunoglobulin inclusions were found in 8 cases--3 belonging to the immunoblastic group, and 5 to the lymphoplasmacytoid group.
{"title":"Cell-associated immunoglobulin in human non-Hodgkin lymphomas. A comparative study of surface immunoglobulin on cells in suspension and cytoplasmic immunoglobulin by immunohistochemistry.","authors":"T. Landaas, Tore Godal, PER F. Marton, Stein Kvaløy, Ruth Langholm, Tore Lindmo, OLE G. Jørgensen, Herman Høst","doi":"10.1111/J.1699-0463.1981.TB00194.X","DOIUrl":"https://doi.org/10.1111/J.1699-0463.1981.TB00194.X","url":null,"abstract":"Eighty-three non-Hodgkin lymphomas classified according to the Kiel classification have been studied with regard to surface immunoglobulin (sIg) on cells in suspension and cytoplasmic immunoglobulin (cIg) by the peroxidase anti-peroxidase method (PAP) on formaline-fixed tissue sections. Fifty-six out of 66 examined (i.e. 85%) revealed a monoclonal staining pattern for sIg, whereas 37/70 (53%) gave a monoclonal staining pattern for cIg by PAP. The methods combined gave a monoclonal staining pattern in 73/83, i.e. in 88%, of the biopsies tested. The discrepancies between the two methods were largest in centroblastic/centrocytic and lymphocytic lymphomas. With regard to the light chain staining patterns, complete agreement between the two methods was obtained in the 20 cases that allowed such analysis to be made. This suggests that the specificity of PAP, as carried out in this study with reagents purified by immunoabsorbent techniques, is satisfactory. On a basis of heavy chain isotypes centroblastic/centrocytic, lymphoplasmacytoid, and immunoblastic lymphomas could be divided into distinct immunological subgroups. In four biopsies the sIg heavy chains were mu + delta, whereas mu + gamma chains were detected by PAP. This finding may be relevant to the mu leads to gamma switch known to occur during normal B-cell differentiation. Immunoglobulin inclusions were found in 8 cases--3 belonging to the immunoblastic group, and 5 to the lymphoplasmacytoid group.","PeriodicalId":6953,"journal":{"name":"Acta pathologica et microbiologica Scandinavica. Section A, Pathology","volume":"1 1","pages":"91-101"},"PeriodicalIF":0.0,"publicationDate":"2009-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89739852","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2009-08-15DOI: 10.1111/J.1699-0463.1977.TB03907.X
J. Mäkinen, J. Nickels, P. Halttunen
A 67-year-old woman who had earlier suffered from rheumatic fever and a persistently elevated sedimentation rate, was operated on for a right pulmonary tumour, which was shown clinically, light and electron microscopically, to be a primary nodular isolated amyloid tumour.
{"title":"Amyloid tumour of the lung. Report of a case and a short review of the literature.","authors":"J. Mäkinen, J. Nickels, P. Halttunen","doi":"10.1111/J.1699-0463.1977.TB03907.X","DOIUrl":"https://doi.org/10.1111/J.1699-0463.1977.TB03907.X","url":null,"abstract":"A 67-year-old woman who had earlier suffered from rheumatic fever and a persistently elevated sedimentation rate, was operated on for a right pulmonary tumour, which was shown clinically, light and electron microscopically, to be a primary nodular isolated amyloid tumour.","PeriodicalId":6953,"journal":{"name":"Acta pathologica et microbiologica Scandinavica. Section A, Pathology","volume":"114 1","pages":"907-10"},"PeriodicalIF":0.0,"publicationDate":"2009-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90384885","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2009-08-15DOI: 10.1111/J.1699-0463.1977.TB00463.X
E. Taskinen, P. Tukiainen, A. Sovijärvi
Three patients with acute and two with subacute nitrofarantoin-induced pulmonary reactions were studied clinically and by examinining microcoscopically needle biopsy specimens of their lungs. In all five patients slight vasculitis and a few interstitial eosinophils were found in the pulmonary tissue 1-2 weeks after the withdrawal of nitrofurantion therapy. Alveolitis, fibrinous alveolar exudate and perivascular granulomas were also seen in some specimens. The patients with acute reactions had marked blood eosinophilia. In all patients, pulmonary diffusing capacity (DLCO) was below normal, but ventilatory function was not appreciably affected. Withdrawal of nitrofurantion resulted in complete or partial improvement in 4-8 weeks. Our clinical and histological findings support the suggestion that a type III immune-complex-mediated reactions is involved in acute and subacute hypersensitivity reactions to nitrofurantoin.
{"title":"Nitrofurantoin-induced alterations in pulmonary tissue. A report on five patients with acute or subacute reactions.","authors":"E. Taskinen, P. Tukiainen, A. Sovijärvi","doi":"10.1111/J.1699-0463.1977.TB00463.X","DOIUrl":"https://doi.org/10.1111/J.1699-0463.1977.TB00463.X","url":null,"abstract":"Three patients with acute and two with subacute nitrofarantoin-induced pulmonary reactions were studied clinically and by examinining microcoscopically needle biopsy specimens of their lungs. In all five patients slight vasculitis and a few interstitial eosinophils were found in the pulmonary tissue 1-2 weeks after the withdrawal of nitrofurantion therapy. Alveolitis, fibrinous alveolar exudate and perivascular granulomas were also seen in some specimens. The patients with acute reactions had marked blood eosinophilia. In all patients, pulmonary diffusing capacity (DLCO) was below normal, but ventilatory function was not appreciably affected. Withdrawal of nitrofurantion resulted in complete or partial improvement in 4-8 weeks. Our clinical and histological findings support the suggestion that a type III immune-complex-mediated reactions is involved in acute and subacute hypersensitivity reactions to nitrofurantoin.","PeriodicalId":6953,"journal":{"name":"Acta pathologica et microbiologica Scandinavica. Section A, Pathology","volume":"32 1","pages":"713-20"},"PeriodicalIF":0.0,"publicationDate":"2009-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74828765","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2009-08-15DOI: 10.1111/J.1699-0463.1977.TB00410.X
L. Angervall, L. Kindblom, C. Merck
: A series of 30 myxofibrosarcomas is described. These malignant soft tissue tumours are characterized by a mucoid and nodular appearance, a coarse plexiform capillary pattern, and they are mostly seen subcutaneously (26 out of 30) in the extremities (24 out of 30) and trunk (4 out of 30) elderly people. Histochemical studies, comprising staining with Alcian blue and toluidine blue at different pH's with and without preceding digestion with testicular hyaluronidase and with the Scott technique, indicated the presence of hyaluronic acid but not sulphated glycosaminoglycans as chondroitinsulphates. Myxofibrosarcoma is believed to belong to the general category of fibroblastic and histiocytic malignant soft tissue tumours. The median diameter of the tumours was 7 cm. They were divided into 4 grades according to cellularity, cell atypia and mitotic activity. The grade III and IV tumours showed pronounced atypia, often with the bi- and multinucleated giant tumour cells and occasionally with giant cells of Touton's type, suggesting a relationship to malignant fibroxanthoma. All of the patients were treated surgically and one received also pre- and post-operative irradiation. None of the 2 grade I myxofibrosarcomas recurred, while 2 out of 7 grade II tumours, 6 out of 10 grade III tumours, and 7 out of 11 grade IV tumours recurred once and up to 9 times. Metastasis appeared in 7 out of 30 patients; grade I tumours were not seen in any of these cases. By the time of follow-up after intervals ranging from 1 month up to 27 years, 14 patients had died; 6 of these had died post-operatively or of intercurrent disease. The differential diagnosis between myxofibrosarcoma and other myxoid soft tissue tumours is discussed.
{"title":"Myxofibrosarcoma. A study of 30 cases.","authors":"L. Angervall, L. Kindblom, C. Merck","doi":"10.1111/J.1699-0463.1977.TB00410.X","DOIUrl":"https://doi.org/10.1111/J.1699-0463.1977.TB00410.X","url":null,"abstract":": A series of 30 myxofibrosarcomas is described. These malignant soft tissue tumours are characterized by a mucoid and nodular appearance, a coarse plexiform capillary pattern, and they are mostly seen subcutaneously (26 out of 30) in the extremities (24 out of 30) and trunk (4 out of 30) elderly people. Histochemical studies, comprising staining with Alcian blue and toluidine blue at different pH's with and without preceding digestion with testicular hyaluronidase and with the Scott technique, indicated the presence of hyaluronic acid but not sulphated glycosaminoglycans as chondroitinsulphates. Myxofibrosarcoma is believed to belong to the general category of fibroblastic and histiocytic malignant soft tissue tumours. The median diameter of the tumours was 7 cm. They were divided into 4 grades according to cellularity, cell atypia and mitotic activity. The grade III and IV tumours showed pronounced atypia, often with the bi- and multinucleated giant tumour cells and occasionally with giant cells of Touton's type, suggesting a relationship to malignant fibroxanthoma. All of the patients were treated surgically and one received also pre- and post-operative irradiation. None of the 2 grade I myxofibrosarcomas recurred, while 2 out of 7 grade II tumours, 6 out of 10 grade III tumours, and 7 out of 11 grade IV tumours recurred once and up to 9 times. Metastasis appeared in 7 out of 30 patients; grade I tumours were not seen in any of these cases. By the time of follow-up after intervals ranging from 1 month up to 27 years, 14 patients had died; 6 of these had died post-operatively or of intercurrent disease. The differential diagnosis between myxofibrosarcoma and other myxoid soft tissue tumours is discussed.","PeriodicalId":6953,"journal":{"name":"Acta pathologica et microbiologica Scandinavica. Section A, Pathology","volume":"33 1","pages":"127-140"},"PeriodicalIF":0.0,"publicationDate":"2009-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74540660","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2009-08-15DOI: 10.1111/J.1699-0463.1974.TB03844.X
E. Hägg
A light microscopic quantitation and comparison of some selected glomerular structures (basement membrane and mesangial area) in nondiabetic and in untreated alloxan diabetic rats at various ages was performed. It applies to both groups of rats that a significant age-related increase of graded glomerular basement membrane thickness and of measured mesangial area developed. In time, however, this increase was significantly more pronounced in the diabetic than in the nondiabetic group. Tubular and interstitial changes were also observed, both in nondiabetic and in diabetic rats. The importance of using an adequate number of nondiabetic, age-matched controls in studies of the mentioned glomerular changes in diabetic rats is emphasized. A quantitation of the changes in “blind” studies is advisable.
{"title":"Renal lesions in rats with long-term alloxan diabetes. A semiquantitative light microscopic study with particular reference to the glomeruli.","authors":"E. Hägg","doi":"10.1111/J.1699-0463.1974.TB03844.X","DOIUrl":"https://doi.org/10.1111/J.1699-0463.1974.TB03844.X","url":null,"abstract":"A light microscopic quantitation and comparison of some selected glomerular structures (basement membrane and mesangial area) in nondiabetic and in untreated alloxan diabetic rats at various ages was performed. It applies to both groups of rats that a significant age-related increase of graded glomerular basement membrane thickness and of measured mesangial area developed. In time, however, this increase was significantly more pronounced in the diabetic than in the nondiabetic group. Tubular and interstitial changes were also observed, both in nondiabetic and in diabetic rats. The importance of using an adequate number of nondiabetic, age-matched controls in studies of the mentioned glomerular changes in diabetic rats is emphasized. A quantitation of the changes in “blind” studies is advisable.","PeriodicalId":6953,"journal":{"name":"Acta pathologica et microbiologica Scandinavica. Section A, Pathology","volume":"453 1","pages":"199-210"},"PeriodicalIF":0.0,"publicationDate":"2009-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82931561","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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