PubMed · 15400283
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Z MARAZZINI. 1949. [Pararenal angiosarcoma].. https://pubmed.ncbi.nlm.nih.gov/15400283/
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Cutaneous angiosarcoma is a rare and invasive endothelial-derived sarcoma that occurs most frequently in the scalp and facial skin of elderly men. It is frequently accompanied by thin-walled cavitary pulmonary metastasis, and is often obscure on chest radiograph. We report a case of angiosarcoma of the scalp with cystic metastasis to the lung in a 63-year-old man, presenting as recurrent bilateral spontaneous pneumothorax. Lung metastasis was missed at the first episode of pneumothorax because the lung-expanded chest radiograph showed no significant abnormality. Two months later, bilateral pneumothorax recurred, and high-resolution computed tomography revealed multiple cystic, cavitary and nodular lesions. Pulmonary metastasis was confirmed by video-assisted thoracoscopic surgery, and pleurodesis was performed. After the operation, the patient received chemotherapy; no recurrence of pneumothorax was found during 6 months of follow-up. Pneumothorax in the elderly should be differentiated from malignant metastatic lung tumors.
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Hepatic angiosarcoma is a rare malignant vascular tumor that accounts for up to 2% of all primary liver tumors. Accurate diagnosis of this tumor is difficult, especially if the patient has no history of exposure to specific carcinogens including thorotrast, arsenicals, and vinyl chloride monomer. Diagnosis of diffuse angiosarcoma by means of liver biopsy has been reported as treacherous and nondiagnostic. Herein, we present a case of a 61-year-old Caucasian male with history of cryptogenic cirrhosis, normal alpha-fetoprotein, and pretransplant abnormal liver MRI who underwent nondiagnostic liver biopsies followed by liver transplantation. High grade diffuse angiosarcoma was diagnosed in the explanted liver. The patient developed bone metastases at 8 months and is alive 1 year posttransplantation. Diffuse liver tissue infiltration seen pretransplant on CT scan or MRI, suggesting the possibility of diffuse liver lesions (HCC, angiosarcoma, etc) must be fully investigated with all techniques available including multiple open liver biopsies to avoid the sacrifice of a liver allograft in these patients.