A variety of benign non-neoplastic conditions occur within the cervix. The chief importance of these is their potential for misdiagnosis as cervical intraepithelial neoplasia (CIN) or cervical glandular intraepithelial neoplasia (CGIN). These conditions include reserve cell hyperplasia, immature and mature squamous metaplasia, inflammatory induced atypia, tubal and tuboen-dometrial metaplasia, endometriosis and microglandular hyperplasia. Mesonephric remnants, when present within the cervix, may also lead to diagnostic problems.
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