title: Microcystic adnexal carcinoma: review of a potential diagnostic pitfall and management.
abstract: Microcystic adnexal carcinoma (MAC) is an uncommon, locally aggressive cutaneous neoplasm that usually presents as a slow-growing, asymptomatic lesion on the head or neck. Microcystic adnexal carcinoma frequently is misdiagnosed due to its histologic appearance on superficial biopsy specimens mimicking other follicular neoplasms. Herein, we highlight a case in which a slow-growing lesion was initially diagnosed as a trichoadenoma following superficial biopsy; however, after surgical excision the pathology revealed a locally aggressive MAC.
authors.affiliation: Largo Medical Center, Medical Education, 2025 Indian Rock Rd, Largo, FL 33774, USA. lana.mckinley@gmail.com.
authors.forename: Lana H
authors.initials: LH
authors.lastname: McKinley
authors.forename: Stacey
authors.initials: S
authors.lastname: Seastrom
authors.forename: Andrew J
authors.initials: AJ
authors.lastname: Hanly
authors.forename: Richard A
authors.initials: RA
authors.lastname: Miller
mesh_terms: D000236:Adenoma / Q000473:pathology*; D000369:Aged, 80 and over; D001706:Biopsy; D002277:Carcinoma / Q000473:pathology*; D018280:Carcinoma, Skin Appendage / Q000473:pathology*; D003951:Diagnostic Errors; D005153:Facial Neoplasms / Q000473:pathology*; D005260:Female; D006258:Head and Neck Neoplasms / Q000473:pathology*; D006801:Humans; D012878:Skin Neoplasms / Q000473:pathology*; D013544:Sweat Gland Neoplasms / Q000473:pathology*