endothrix


Also found in: Wikipedia.

endothrix

 [en´do-thriks]
a dermatophyte whose growth and spore production are confined chiefly within the shaft of a hair.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

en·do·thrix

(en'dō-thriks),
Fungal spores (conidia) invading the interior of a hair shaft; there is no conspicuous external sheath of spores, as there is with ectothrix.
[endo- + G. thrix, hair]
Farlex Partner Medical Dictionary © Farlex 2012

en·do·thrix

(en'dō-thriks)
Fungal spores (conidia) invading the interior of a hair shaft; there is no conspicuous external sheath of spores, as there is with ectothrix.
[endo- + G. thrix, hair]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
References in periodicals archive ?
tonsurans is an endothrix infection, invading the hair shaft and superficial hair while M.
In endothrix type of invasion, for example by Trichophyton violaceum and T.
On the other hand, the observations of fungal filaments with Arthroconidia, Ectothrix or Endothrix, and the fungal filaments in hair shaft were indicative of the Dermatophytosis and Tinea Faciei.
Microscopical examination of skin scrapings and epilated hair after overnight digestion in 10% KOH solution revealed endothrix pattern of arthrospores within the hair.
Classification and severity of Tinea capitis depends on how fungus invades the hair shaft and the formation of their arthroconidia.6 There are three recognised patterns: Endothrix where the hair shaft is filled with fungal branches (hyphae) and spores (arthroconidia) clinically termed black dot.
Diagnosis of dermatophytes in hair pieces was made by the visualisation of arthroconidia arranged along the length of the hair in chains or masses around the hair (ectothrix infection) or in the hair substance (endothrix infection).
On high-power magnification, hyphae are seen within the hair shaft in endothrix tinea or in a cuff outside the hair shaft in ectothrix tinea.
The samples were kept for 20 minutes and then examined for the presence of ectothrix or endothrix spores in addition to filamentous, septate, branched hyphae with or without arthrospores and trichospores.
However, with tinea capitis infections that are caused by the Trichophytan species, the fungal spores form on the inside of the hair shaft (endothrix), and there is no fluorescence (Fuller et al., 2003).
One way is endothrix in which fungal growth and spore formation are confined mainly within the hair shaft without formation of external spores.
Comma hairs, which are slightly curved and fractured hair shafts, are associated with ectothrix and endothrix type fungal invasion.
Wood's lamp examination can confirm exothrix fungal infections (infection on surface of hair) while in endothrix infections (fungus invades hair shaft), the inflorescence is not seen.