Melanosis of the uterine cervix: a report of two cases and discussion of pigmented cervical lesions.

Two cases of cervical melanosis, an uncommon process characterized by hyperpigmentation of the basal epithelium, with or without accompanying basal melanocytes, are reported. The etiology of cervical melanosis is uncertain but may represent a metaplastic change in response to trauma or chronic irritation. On gross examination, it is not possible to reliably separate the different causes of cervical pigmentation; consequently, any pigmented cervical lesion should be biopsied.