Type : Phenotype or locus, molecular basis unknown;
Alternative titles and symbols : Pili annulati;
Description : Pili annulati, or 'ringed hair,' is a disorder in which scalp hairs show alternating
light and dark bands. It is often an incidental finding, and the hair usually does
not show increased fragility (Green et al., 2004). See also pseudopili annulati (613241),
a distinct entity.;