Actas Dermosifiliogr. 2009;100:511-25 524 3. Whiting DA. Structural abnormalities of the hair shaft. J Am Acad Dermatol. 1987;16:1-25. 4. Itin PH, Mattarelli G, Bircher AJ, Zuberbühler E, Guggenheim R. Localized trichorrhexis nodosa. Br J Dermatol. 1992;127:656-7. 5. Smith RA, Ross JS, Bunker CB. Localized trichorrhexis nodosa. Clin Exp Dermatol. 1994;19:441-2. 6. Ghorpade A. Moustache twirler’...

Trichorrhexis nodosa is a condition in which individual hairs develop areas where the shaft has split longitudinally into numerous small fibres. The hairs eventually break at these points leaving brush-like ends. Usually trichorrhexis nodosa results from mechanical trauma or harsh chemical treatment (Chernosky and Owens, 1966), but two inherited disorders, argininosuccinic aciduria (Allan et al...

Hair shaft disorders encompass a wide range of hair defects with or without fragility, which could be acquired inherited genetically. may localized generalized and are characterized by changes in color, structure, length, density. Pili torti, also called twisted hair, is clinical entity the flattened 180° along its axis. annulati described as striped showing alternate light dark bands. Trichorr...

1. Barrera M, Bosch R, Mendiola M, Frieyro M, Castillo R, Fernández A, et al. Reactivación de la sífilis en Málaga. Actas Dermosifiliogr. 2006;97:323-6. 2. Dourmishev LA, Dourmishev AL. Syphilis: uncommon presentations in adults. Clin Dermatol. 2005;23:555-64. 3. Baniandrés Rodríguez O, Nieto Perea O, Moya Alonso L, Carrillo Gijón R, Harto Castaño A. Nodular secondary syphilis in a HIV patient ...