Trichoscopic Findings in Patients With Patchy Alopecia and Its Comparison With Histopathological Diagnosis

The study involving 61 patients with patchy alopecia demonstrated that trichoscopy is an effective noninvasive diagnostic tool for identifying various types of patchy alopecia, such as alopecia areata (AA) and lichen planopilaris (LPP), with a 73.77% concordance rate with histopathological findings. While trichoscopy is particularly useful for diagnosing AA and LPP, histopathology is more advantageous for conditions like pseudopelade of Brocq and morphea. The study concluded that trichoscopy can often reduce the need for invasive biopsies, though histopathology remains essential for uncertain cases.