前列腺癌活检标本的病理学特征(附112例报告)

Pathological features of biopsy prostatic adenocarcinomas (report of 112 cases)

目的 探讨前列腺活检诊断前列腺癌的病理学特征。 方法 对 114 7例前列腺活检标本 (前列腺癌 112例 ,良性前列腺增生 10 3 0例 ,非特异性肉芽肿性前列腺炎 5例 )进行回顾性分析 ,并进行组织学分级 ,部分病例采用细胞角蛋白 (3 4 βE12 )单克隆抗体作免疫组织化学检查。 结果 根据结构紊乱 ,细胞学异型性和浸润等病变特点 ,诊断前列腺癌 112例 ,其中高分化腺癌 2 3例(2 0 .5% ) ,中分化腺癌 3 8例 (3 3 .9% ) ,低分化腺癌 51例 (45.5% )。癌组织间见低级别上皮内瘤 (PINⅠ ) 2 1例 (18.8% ) ,高级别上皮内瘤 (PINⅢ ) 75例 (67.0 % )。免疫组化染色中 ,10 2例良性前列腺增生者腺体基底层细胞 3 4 βE12阳性 98例 ,40例前列腺癌者 3 4 βE12呈阴性反应 3 6例。 结论 根据病理形态学特征 ,结合免疫组化结果 。

Objective To study the pathomorphological f eatures of prostatic adenocarcinoma from biopsy. Methods Of 1147 cases of prostatic biopsy specimens,112 cases were adenocarcinoma,1030 cases benign prostatic hyperplasia and 5 cases nonspecific granulomatous prosta titis.Histological grades and the differential diagnosis between well-different iated adenocarcinoma and hyperplasia were conducted.Immunohistochemical analysis (34βE12) were done in some cases. Results 112 cases of adenocarcinoma were diagnosed according to the architectural changes, cytologic al atypia and invasion. 23 cases(20.5%)were of well-differentiated carcinoma ,38 cases(33.9%)moderately-differentiated carcinoma and 51 cases(45.5%) po or-differentiated carcinoma. 21 cases(18.8%) were of low grade prostatic intrae pithelial neoplasia(PIN Ⅰ)and 75 cases(67.0%)of high grade PIN(PIN Ⅲ) were found with in tumor tissue.With immunohistochemical stain,98 in 102 cases of BP H were positive reactive for 34βE12 in the basal layer,while 36 of 40 cases of prostatic adenocarcinoma were negative. Conclusions Ro utine pathological morphological features,combined with immunohistochemical test s is valuable for the pathological diagnosis of prostatic adenocarcinoma.