In Vivo Reflectance Confocal Microscopic Findings in a Case of Trichofolliculoma

The document presents a case study of a 66-year-old man with trichofolliculoma, a rare follicular hamartoma, and the use of reflectance confocal microscopy (RCM) in diagnosing the condition. The RCM revealed squamous hyperplasia forming irregular finger-like protrusions around the hair follicle and papillomatous hyperplasia in the hair follicle epithelium, which correlated with histopathology. The authors suggest that RCM could be a useful tool for in vivo diagnosis of trichofolliculoma in cases that are difficult to diagnose by morphology and dermoscopy.