Uterine cervical tubulosquamous polyp resembling a penis.

This case report describes a tubulosquamous polyp resembling a penis in the uterine cervix. A 34-yr-old, gravida 0, para 0, woman showed an 18 × 8 × 5 mm polypoid lesion in the uterine ectocervix. The polyp had a penis-like appearance; the tip looked like glans penis and the middle portion resembled the shaft of the penis. Its surface was covered by squamous epithelium, and tissues resembling those of a urethra, corpus spongiosum penis, and external orifice urethra were observed. Foreskin-like tissues were also observed, although a corpus cavernosum penis was not seen. Skene glands and Cowper glands were also observed. Immunohistochemically, Skene glands and the urethra-like epithelium were focally positive for prostate-specific antigen and/or prostatic acid proteins. Histologically and immunohistochemically, the polypoid lesion overlapped with a tubulosquamous polyp of the vagina and ectopic prostatic tissue of the uterine cervix and encompassed these lesions in the lower female genital tract. The most likely theory of histogenesis is a developmental anomaly and misplacement of Skene glands.