EPT, first described by Jores in 1894, refers to the presence of benign prostatic acini and/or stroma outside the male prostate
[7]. Most reported cases have been in men, commonly in the lower genitourinary tract
[2],
[8],
[9]. Recently, more cases have been found outside the genitourinary tract, such as in the
peri-rectal region and in an intradural lipoma of the conus medullaris of the spinal cord
[10],
[11].
EPTs have also been reported in women, usually in the cervix, vagina, and ovaries
[4],
[6],
[12]. However, such cases are rare and not fully recognized by pathologists. The 2014
World Health Organization Classification of Tumors of The Female Reproductive Organs only provides a brief description of EPT. Unfortunately, lack of knowledge about this condition could lead to misdiagnosis.
Cervical EPT has been reported in women aged 21–77 years
[3],
[4],
[5],
[13],
[14],
[15],
[16].
Most cases were found incidentally in patients with cervical squamous intraepithelial lesions or other uterine masses following loop electrosurgical excision or hysterectomy. A rare case presented as a cervical mass
[3]. To date, only two cases of vaginal EPT have been reported
[5],
[13]. Two cases of ovarian EPT were identified in mature cystic teratomas, one of which had small clusters of prostatic glands and the other was a 2-cm-sized nodule
[17],
[18]. Another case was discovered in the hilum of an ovary, mixed with mesonephric remnants
[19].