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Pur/iolo,y.y, Tumours of the cardiovascular system. 2nd series, fasicle 15. Washington, DC: Armed Forces Institute of Pathology, 1978. ROBINSON FC. Aneurysms of the coronary arteries. Am. Hmi-I J . 1985; 109; 129 135. ROH LS. PAPARO GP. Primary malignant lym-phoma of the heart in sudden unexpected death.

A case of primary seminal vesicle carcinoma is reported. The tumor was a CA125‐producing adenocarcinoma consisting of fine papillary‐tubular, intricate branching or anastomosing glandular structures and was composed of small cuboidal, but occasionally hobnailed, cells with mostly clear, but occasionally granular, cytoplasm. Some tumor cells showed evidence of secretion of seromucinous materials into the interpapillary and cystic space. lmmunohistochemically, almost half of the tumor cells expressed a positive reaction with anti‐CAl25, a common serological marker for ovarian epithelial carcinomas; however, no tumor cells expressed any other serological tumor markers such as carcinoem‐bryonic antigen, α‐fetoprotein, human chorionic gonadotropin, prostatic specific acid phosphatase, or prostatic specific antigen. The patient showed a high level of serological CA125, which fluctuated parallel with the growth, removal and recurrence of the tumor. The morphological and immunohistochemical findings suggested a close relationship between the present tumor and clear cell carcinoma of the ovary, which is thought to be of a Müllerian‐Wolfian duct origin.