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Pili multigemini
Author(s) -
MEHREGAN AMIR H.,
THOMPSON WILLIAM S.
Publication year - 1979
Publication title -
british journal of dermatology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.304
H-Index - 179
eISSN - 1365-2133
pISSN - 0007-0963
DOI - 10.1111/j.1365-2133.1979.tb06205.x
Subject(s) - outer root sheath , anatomy , hair follicle , chin , major duodenal papilla , dermal papillae , follicle , adhesion , biology , materials science , microbiology and biotechnology , botany , composite material
SUMMARY A patient with cleidocranial dysostosis developed extensive pili multigemini over the heavily bearded chin and cheek areas. Histological examination of serial sections revealed complicated follicular structures forming from two to as many as eight hair shafts. Each hair is formed by a single branch of dermal papilla which is surrounded by all layers present in a normal follicle except for the outer root sheath cells. The outer root sheath surrounds the entire follicle. Irregularities in configuration of the hairs, longitudinal grooving and areas of bifurcation and re‐adhesion of the hair shafts are demonstrated.