[Association of prostatic adenocarcinoma with transitional cell and squamous cell carcinomas of the same organ]

Among 13 cases of transitional cell carcinoma of the prostate there was one case of its combination with clear cell adenocarcinoma of the same organ. Areas with trend to glandular metaplasia were found in transitional cell carcinoma. Also, a very rare case of combination of prostate adenocarcinoma and squamous cell keratinizing microcarcinoma of the excretory duct of the organ is described. In both cases there were foci of dysplastic lesions of both glands of the prostate (atypic hyperplasia) and epithelium of its ducts (squamous cell metaplasia with areas of hyperplasia of basal and parabasal cells).