1972 年 11 巻 2 号 p. 236-241
An autopsy case of malignant hemangioendothe-lioma arising from the right atrium of the heart ispresented.The patient is 30-year-old house-wife. Final coursewas about 7 months.
Clinical symptoms were painalong lumbar verteburae, ascites, and hemopericar-dium. Hematologically severe anemia, marked leuko-erythroid reaction, severe thrombocytopenia and hypofibrinogenemia were proved.
About one month before death, non-epithelial tumor cells were detected in left pleural fluid. Theirnuclei are oval or round and have fine granularchromatin, one or several nucleoli and thin nuclearmembranes. Cytoplasm stains thin, greensh-blue.
Their shape is polymorphous but in most partsspindle-shaped. Occasionaly, several tumor cells formrosette-like arrangement. Surgically tumor of theright atrium was resected but she died from pulmonary complication. Autopsy diagnosis was malignant hemangioendothelioma with hematopoiesis intra tumori of the heart. Metastasis were found onthe pericardium, pleurae, in lungs, bone marrows, spleen, liver, kidneys, ovaries, right adrenal, duramata, thymus and lymphnodes.
Cytological diagnosis is very useful for diagnosisof malignant tumors arising from hearts.