Melanocytic matricoma: a pigmented lesion on the forehead Anais Brasileiros de Dermatologia (Portuguese) Spindle cell melanocytic lesions: part IIan approach to intradermal proliferations and horizontally oriented lesions Journal of Clinical Pathology Tanning from the inside out = Highly Dangerous and Illegal!, Many products advertised on social media platforms promising a tan from the inside out or a tan without sun such as injectable Melanotan II (Tan Jabs): Why They're Not Worth The Risk Case Challenge! We have a 68 year old patient with no significant past medical history presenting for consultation. A progressively growing melanocytic lesion on the frontal region. Duration: Approximately 1 year. Symptoms: Non pruritic.