Clear cell adenocarcinoma of urinary bladder: A case report and review.

Clear cell carcinoma is an uncommon but distinct variant of urinary bladder carcinoma histologically resembling the neoplasm in the female genital tract. The histogenesis of this neoplasm is uncertain. The clinicopathologic and histologic features are suggestive of a mullerian origin in some tumors, while some believe it to be glandular differentiation of urothelium or a unique vesicular adenocarcinoma of non-mullerian origin.[1] We present a case of clear cell adenocarcinoma in a 74-year-old woman with review of literature along with its differential diagnosis.