Göksungur, N.Karabay, Oğuz2021-06-232021-06-2320070307-6938https://doi.org/10.1111/j.1365-2230.2007.02454.xhttps://hdl.handle.net/20.500.12491/4254Adverse effects due to interferon (IFN)-alfa have been well documented, usually as influenza-like symptoms, depression, autoimmune diseases, acute renal failure and neuropathy.1 The most commonly encountered skin and hair disorder related to IFN-alfa therapy is alopecia, but changes in hair pigment (discoloration, greying, repigmentation) and appearance (curling or straightening) have also been reported.2 Hypertrichosis has also been reported as a rare side-effect of therapy, especially of the eyelashes.3–5 We report a patient treated with IFN-alfa-2a who developed trichomegaly of the eyelashes and eyebrows. To our knowledge, this is the first case of trichomegaly related to IFN-alfa-2a therapy.eninfo:eu-repo/semantics/closedAccessEyelashEyebrowTrichomegalyLetter10.1111/j.1365-2230.2007.02454.x325583584175090592-s2.0-34547781697Q2WOS:000248978500028Q2