Hair Loss Due to Lichen Planopilaris After Hair Transplant: Case Reports and Literature Review

The document describes two cases where patients experienced hair loss due to lichen planopilaris (LPP) after undergoing hair transplants, highlighting the rarity of such occurrences. The first patient had hair loss in the recipient and donor areas six years post-transplant, while the second patient showed partial hair loss with active disease two years after the procedure. Histopathological examination confirmed LPP, and one patient was treated with intralesional triamcinolone, which stabilized the lesions. The study underscores the necessity of a scalp biopsy to confirm LPP inactivity before transplantation and recommends a waiting period of at least two years of disease inactivity before proceeding with a transplant. It also advises informing patients about the potential for reduced graft integration due to the systemic and autoimmune nature of LPP.