Adenoid basal carcinoma cervix - A rare epithelial neoplasm

Adenoid basal carcinoma of the uterine cervix is a rare epithelial neoplasm. Adenoid basal carcinoma constitutes less than 1% of all cervical adenocarcinomas and has a favorable prognosis. Adenoid basal carcinoma is assumed to arise from a multipotential basal or reserve cell layer in the cervical epithelium. We report a case of adenoid basal carcinoma of the uterine cervix with complaints of bleeding per vagina in a 40-year-old female. The carbohydrate antigen 125 level was elevated (100 U/ml), and the MRI abdomen and pelvis revealed increased signal intensity in the anterior lip of the cervix. The local examination revealed thickening of the anterior lip of the cervix and induration in the left fornix. The patient was diagnosed with carcinoma cervix stage IB2 (FIGO Stage). The patient was operated by a radical robotic hysterectomy. Microscopic examination revealed small basaloid tumor cell nests with peripheral cell palisading and microcyst formation. The tumor cells showed p63 immunoreactivity in basaloid tumor cells and were negative for CD117 and S-100P. This tumor should be differentiated from adenoid basal cell hyperplasia, which has a favorable outcome, and adenoid cystic carcinoma, with a dismal course.