Pili torti
# Pili torti

Pili torti (singular pilus tortus; also known as "twisted hairs") is characterized by short and brittle hairs that appear flattened and twisted when viewed through a $microscope.^{:638}^{:764}$

This phenotype is noted in Menkes disease and Lichen planopilaris. Pili torti can also occur after use of retinoids, such as isotretinoin.

