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Annales de Dermatologie et de Vénéréologie
Vol 127, N° 2  - mars 2000
p. 205
Doi : AD-03-2000-127-2-0151-9638-101019-ART80
Cas cliniques

Pili multigemini : une dysplasie pilaire à disposition linéaire

P. Schoenlaub [1], P. Hacquin [2], A.-M. Roguedas [1], J.-P. Leroy [3], P. Plantin [1]
[1] Service de Dermatologie, Hôpital Laennec, CHIC, BP 1757, 29107 Quimper Cedex
[2] 5, rue Brémond-d'Ars, 29300 Quimperlé
[3] Service d'Anatomie Pathologique, CHU Morvan, 29609 Brest Cedex.


Le pili multigemini est une dysplasie pilaire rare, dont la disposition linéaire pourrait traduire le caractère Blaschko-linéaire.


Nous rapportons un cas de pili multigemini du menton et de la région cervicale haute, apparu vers l'âge de 30 ans, chez un homme de 37 ans.


Cette anomalie rare du follicule pileux est caractérisée par l'existence de poils multiples, foncés et drus, au sein d'un même infundibulum pilo-sébacé. La distribution linéaire de cette atteinte en regard du rebord mandibulaire nous fait discuter une dysplasie pilaire Blaschko-linéaire. Des malformations associées sont rarement décrites. Le traitement est inconnu.

Pili multigemini: a pilar dysplasia with linear disposition.

Pili multigemini is an uncommon pilar dysplasia with linear disposition which could be explained by the pattern of Blaschko's lines.

Case report

A 37-year-old man with no medical history developed pili multigemini over a heavily bearded chin.


Mili multigemini is an uncommon developmental defect of hair follicles resulting from hairs with multiple matrices and papillae emerging through a single pilosebaceous canal. This defect has a linear distribution on the chin we found to follow Blaschko's lines. Pili multigemini has been observed in association with a few rare malformations. Treatment is difficult.

© 2000 Elsevier Masson SAS. Tous droits réservés.
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