腹部腫瘤を主訴とした前立腺癌

PROSTATE CANCER PRESENTING AS SYMPTOMATIC HUGE ABODOMINAL MASSUSEFULLNESS OF IMMUNO-HISTOCHEMICAL TECIINIQUE-:A CASE REPORT

　79歳，男性。左下腹部の腫瘤を主訴に受診。直腸診にて，前立腺癌を疑い，前立腺生検および腹部腫瘤生検を施行した。いずれも中分化腺癌であった。免疫組織学的検索では前立腺特異抗原および前立腺性酸性ホスファターゼが陽性であり，前立腺癌およびその腸骨リンパ節転移と診断することができた。内分泌療法により転移リンパ節は急速に収縮した。

A 79-year-old man was hospitalized for an asymptomatic abodominal mass in February 2, 1993. Physical examination revealed a firm, smooth, fixed, non tender mass of a fist size, in the left lower abdomen. The prostate was of over-hen's egg size, stony hard on digital rectal examination. Needle biopsy of the prostate showed a moderately differentiated adenocarcinoma. The serum prostate specific antigen was elevated up to 2680 ng/ml (TR-FIA). Needle biopsy of the left lower abdominal mass alsorevealed moderately differentiated adenocarcinoma. The stain for prostate specific antigen was positive in both specimens.