Diagnosis of pigmented basal cell carcinoma

Abstract

Basal cell carcinoma is one of the most common neoplasms in humans and, within a group of non-melanoma skin carcinomas, the most common one. Originating from epidermis basal cells and hair follicles, it grows slowly, it is not very aggressive and in most cases, it doesn ́t tend to emit metastases. Nonetheless, it has different cellular types: nodular, ulcerative, sclerosing, pigmented and superficial. The pigmented variant has the peculiarity of being confused with other pathologies such as seborrheic keratosis, malignant melanoma, and blue nevus, being mandatory to investigate on clinical suspicion.