Adenoid Variant of Basal Cell Carcinoma: A Case Report of a Rare Histopathological Subtype with Dermoscopic Aspects

Abstract

Basal cell carcinoma (BCC) is the most common cutaneous tumor, accounting for approximately 70% of all malignant diseases of the skin. Ultraviolet radiation is considered the single most important risk factor for BCC. Thus, it arises commonly on sun-exposed sites such as the head and neck. Adenoid subtype is one such rare, indolent variant of conventional BCC, with an incidence of 1.3%. It is often regarded as a low grade malignancy compared to other subtypes like nodular and morpheic form. We report here one such interesting very rare case of adenoid BCC of the malar region of the face with special regard to the dermoscopical and histological features.