An Autopsy Case of Extraosseous Mesenchymal Chondrosarcoma

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  • 骨外性間葉性軟骨肉腫の一剖検例
  • ホネ ガイセイカン ヨウセイ ナンコツニクシュ ノ イチボウケンレイ

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Description

A sixty-five years old housewife began to complain the right upper abdominal pain in February,1972, and was admitted in December of the year with the suspect to hepatoma. During the first admission, she had noted the discomfort in the right upper quadrant of the abdomen, which was described as a lasting tractive'pain and severe pain aggrevated either by deep inspilation or by lying on the left side, but her general condition was almost successful. In 1973, the patient has been complaining of abdominal distention and ascites. The abdominal tumor gradually enlarged, and she died in April,1973.<BR>The abdominal tumor was situated in the subphrenic and retroperitoneal space, looked a gray-brown child-head sized, firm tumor revealed an area of central necrosis, and infiltrated into the liver tissue. The metastatic foci could be detected in few regional lymph nodes. Histological examinations disclosed the tumor to be composed of richly cellular and undifferentiated mesenchymal cells and islands of differentiated cartilage. There were many binucleated chondroblasts as well as occasional multinucleate forms. Calcification in the chondroid matrix occured focally, but direct formation of osteoid was absent The extraosseous mesenchymal chondrosarcoma was reported, and this was discussed on ref ferences.

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