Sarcomatoid transformation of a primary basal cell carcinoma of the cheek.

Anatomical pathology analysis revealed two distinct tumour morphologies: nodular and infiltrative basal cell carcinoma (BCC) at the periphery of the lesion (Fig. Available from URL: https://wiki.cancer.org.au/australia/Guidelines:Keratinocyte carcinoma/Epidemiology BCC 2 Mc Menamin ME, Goh SGN, Poblet E, Gostelow BE, Robson A, Calonje E. Sarcomatoid basal cell carcinoma - predilection for Osteosarcomatous differentiation. Pre-operative histopathology from a 4 mm punch biopsy suggested a diagnosis of micronodular and infiltrative basal cell carcinoma (BCC). [Extracted from the article]