Reply to: “Updated diagnostic criteria for frontal fibrosing alopecia”

To the Editor: We thank Vaño-Galvan et al for their letter regarding criteria for frontal fibrosing alopecia (FFA).1 The differential diagnosis of FFA is broad, and diagnostic criteria can aid in identifying this entity. We agree with many of the suggestions to our diagnostic criteria proposed in our article on the Mayo Clinic cohort of FFA patients.2