Article

Pili Annulati: A Report of 2 American Families

Cutis. 2013 May;91(5):254-257
By
David R. Berk, MD
Susan J. Bayliss, MD
Kathrin A. Giehl, MD

Pili annulati (PA) is a rare, benign, autosomal-dominant or sporadic hair shaft disorder charac­terized by scalp hair with a banded or speckled appearance. We present 2 American families with PA and highlight the characteristic clinical and microscopic features. Among the 2 families, a total of 11 individuals with PA were identified, spanning 3 generations in family 1 and 4 genera­tions in family 2.
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