Cruz-Meza S, Ruiz-Arriaga LF, Gómez-Daza F, Vega-Memije ME, Arenas R,

Language: Spanish
References: 47
Page: 135-145
PDF size: 316.77 Kb.

ABSTRACT

Demodicosis is an ectoparasitosis caused by mites of the genus Demodex, species folliculorum and brevis. These mites are cosmopolitan and behave as commensal of the pilosebasea unit, in which they feed on sebum, cell detritus, plasma and bacteria.
The cutaneous parasitation is characterized for being a facial dermatosis, mainly on seborrheic areas, with a diverse clinical presentation: pytiriasis folliculorum, papulo-pustular demodicosis, and Demodex blepharitis.
Recently, demodicosis has been recognized as a skin disease, and also, there has been a couple propositions to classify it, in order to include all clinical presentations, whether if its isolated or associated to other dermatoses.
The pathophysiology of this disease has not been completely understood, it is thought to be due to an infestation of the pillosebaceus unit through mechanic or chemical factors, or even, symbiosis with bacteria such as Bacillus oleronius. We conducted a review of the diagnostic techniques that have been used throughout the study of this disease, with a step-by-step description of each technique, as well as the cutoff point, sensitivity and specificity of the diagnostic methods.

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