Polypoid Basal Cell Carcinoma on the Right Axillary Region of a Young Lady Four Weeks Gestation: A Case Report

Abstract

Basal Cell Carcinoma (BCC) is the most common skin neoplasm of various types. It has various clinical forms, mainly known as nodular, superficial, and morphea. Other less prevalent forms include polypoid, pore-like, and Jacobi ulcers. Polypoid BCC is rarely observed in individuals and has remarkable clinical features, such as being pedunculated and connected to the skin by a stalk; the BCC incidence is more in women than men and correlates directly with age, as it is reported to be <15% in patients below 40 years, so it is not frequently observed among young adults. In this case, we report one type of BCC presented as a skin tag. A 21-year-old young lady, four weeks gestation, was referred with a skin tag on the right axillary region. Surgical excision was performed; a histopathologic examination of the skin lesion revealed a malignant epithelial neoplasm composed of some nests of basaloid cells and an accumulation of mucin. The IHC staining, such as Bcl2, CK20, CD34, and Ki67, facilitates better evaluations. The diffuse pattern of Bcl2 in basaloid cells, the rare staining of CD34 in stromal cells, the absence of CK20, and high positivity of Ki67 in tumor cells are favored in diagnosing BCC.