Involutive Congenital Tufted Angioma, an Atypical Case Presentation

A case is presented of a 3-month-and-15-day-old male patient referred for a consultation due to a congenital 'red spot' on the left abdomen, where a linear erythematous-violaceous plaque with gray areas, indurated texture, and fine hairs was observed. An ultrasound was requested, revealing findings consistent with an infiltrative lesion. A biopsy was performed, and the lesion was reported as compatible with tufted angioma, reactive for immunohistochemical markers CD31, CD34, and D2-40. A description of the case is provided, along with a bibliographic review, emphasizing the clinical presentation and diagnostic approach.