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PubMedID: 9845644 We present an 18-year-old man with painless rectal bleeding, hematuria and diffuse cavernous hemangioma of the rectum and sigmoid colon. Thirty units of blood were transfused during the interval preceding definitive surgery. Low anterior resection and partial cystectomy were performed. During the postoperative period no rectal bleeding occurred, but he died of massive intracerebral bleeding 10 months after the operation.

PubMedID: 9740996 Salivary duct carcinoma (SDC) is an uncommon and highly aggressive neoplasm that reveals histopathologic features resembling infiltrating duct carcinoma of the breast and prostate. SDC arising on the basis of preexisting pleomorphic adenoma (PA) is very rare. This report describes the fine-needle aspiration (FNA) cytology of a case of SDC ex PA. FNA smears were cellular with cells with large, pleomorphic nuclei, some prominent nucleoli, and finely vacuolated cytoplasm. The neoplastic cells were forming groups, sheets, and papillary structures and a cribriform pattern was present in some sheets. Mitotic figures were frequently seen. Necrosis was prominent in the background. Histologic sections of the tumor revealed areas of comedo carcinoma, papillary carcinoma, and infiltrative carcinoma as well as multiple foci of PA. The presence of a cribriform pattern, tumor cells resembling breast ductal carcinoma cells, and a necrotic background are helpful features for an accurate cytodiagnosis of SDC.

PubMedID: 7957293 [No abstract available]