A cystic basal cell adenoma arising in the upper lip: A case report and review of literature. Issue 2 (March 2019)

• Record Type: Journal Article
• Authors: Tatehara, Seiko; Kataoka, Shiki; Sato, Toru; Satomura, Kazuhito
• Is Part Of: Journal of oral and maxillofacial surgery, medicine, and pathology. Volume 31:Issue 2(2019)
• Page Start: 108
• Page End: 112
• Publication Date: 2019-03
• Subjects: Basal cell adenoma -- Upper lip -- MRI finding -- Immunohistochemistry; Mouth -- Surgery -- Periodicals; Face -- Surgery -- Periodicals; Maxilla -- Surgery -- Periodicals; Oral medicine -- Periodicals; Mouth -- Diseases -- Pathogenesis -- Periodicals; Surgery, Oral -- Periodicals; Oral Medicine -- Periodicals; Pathology, Oral -- Periodicals; Face -- Surgery; Maxilla -- Surgery; Mouth -- Diseases -- Pathogenesis; Mouth -- Surgery; Oral medicine; Electronic journals -- Sciences; Electronic journals -- Medicine; Periodicals; 617.522059
• DOI: 10.1016/j.ajoms.2018.08.009
• Languages: English
• ISSNs: 2212-5566

Abstract

Abstract: Basal cell adenoma (BCA) is a rare type of benign tumor of the salivary gland. This study presents a BCA case of a 74-year-old Japanese female referred to our hospital with a mass in the upper lip. The 22 × 15 × 13 mm tumor was observed as a round, bluish-violet, elastic, hard mass. T2-weighted magnetic resonance images revealed a heterogeneous hyperintensity mass in the upper lip. This lesion was diagnosed clinically as a benign tumor of the upper lip and was surgically resected with the inclusion of healthy tissue under general anesthesia. The cut surface of the lesion showed a cyst-like structure with the solid area projecting into that cavity. Moreover, histologically, the solid area exhibited basal cell-like cells forming small and/or large cribriform cell nests and a partially palisading-arrangement on the periphery of their cell nests, with connective tissue hyalinized in the stroma. Immunohistochemically, the tumor cells were positive for AE1/AE3, S-100 protein, and vimentin. From these findings, the diagnosis was BCA. There have been no recurrence 6 years postoperatively.