Pilomatricoma is a benign skin tumor derived from the hair follicle. It has a varied etiology, and the traumatic one is often described as a triggering factor. The surgical treatment is curative and, therefore, the choice. We report a case of an atypical clinical presentation pilomatricoma – an ulcerated nodule topped by a central hematic crust, with peripheral telangiectasias probably triggered by the HPV vaccination. The ultrasound examination suggested the possibility of a chronic inflammatory granuloma, although the histopathological examination was definitive and confirmed the diagnosis of pilomatricoma.

Keywords: Papillomavirus vaccines; Hair follicle; Ultrasonography, Doppler; Skin neoplasms

Since antiquity, chemical peelings are still widely used to treat skin aging. There are a variety of substances, techniques, and considerations for each type of peeling. However, this case series aims to present a non-described form of application of trichloroacetic acid (TCA) and retinoic acid to treat fine static wrinkles on the face. The technique consists of applying the TCA peeling directly to the facial rhytids and, subsequently, retinoic acid peeling all over the face for 6 hours.

Keywords: Chemexfoliation; Trichloroacetic acid; Skin aging; Chemical abrasion