[Endometriosis of the uterine cervix: about a case]

This study reports the case of a 46-year old multiparous patient with no particular past medical history, who had given birth vaginally twice, presenting with abnormal isolated inter-menstrual bleeding with well-defined bluish cyst at the level of the anterior labia of the cervix, measuring 4mm in diameter on speculum examination. Pelvic ultrasound showed adenomyosis. A biopsy of the lesion was performed, which showed dark brown chocolate colour liquid. Histological study objectified endometrium embedded under the epithelium, suggesting endometriosis of the uterine cervix. Endometriosis of the uterine cervix can involve the endocervix and the ectocervix. Primary endometriosis of the uterine cervix can develop in the cervix while secondary endometriosis can result from neighboring endometriosis. Trauma is the main cause of these lesions. The de-epithelialization caused by trauma would allow for endometrial transplantation during menstruation. Endometriosis of the uterine cervix is usually asymptomatic. It is usually discovered during a careful systematic examination of the uterine cervix. Rarely, it manifests as minimal, spontaneous metrorrhagias in the premenstrual period. Sometimes, metrorrhagias occur during menstruations and are persistent or are caused by sexual intercourses. Isolated endometriosis of the uterine cervix never causes pain. The treatment of this benign condition is based on the destruction or removal of the endometriosis foci. Diathermocoagulation is the most used procedure.