Relación de los hallazgos dermatoscópicos de demódex spp. y la biopsia superficial de la piel en el eritema facial. Hospital Luis Vernaza. Febrero - mayo 2018.

Abstract

Antecedent: The prevalence of facial erythematous dermatoses is increasing, despite the controls and recommendations of dermatologists on the use of nonmedicated substances. The etiology is still unknown, but it is mainly attributed to the increase in the population density of a commensal microorganism called Demodex spp., But the lack of equipment in the dermatological offices and the delay in the results of parasitological laboratory tests prevent diagnosis in time real and delays the proper prescription. Materials and methods: an observational, crosssectional, analytical and prospective research was developed for 40 patients who came for the first time with Facial Erythematosus Dermatosis presenting signs of Demodex spp. and without previous treatment. 1 cm2 of the area with greater facial erythema was selected, in search of the dermatoscopic patterns: Demodex spp. Tails, follicular openings and dilated reticular blood vessels, followed by taking a Skin Surface Biopsy to determine population density of the Demodex spp. Results: patients with a population density of Demodex spp. > at 5cm2: 42.5% (17) presented Tails of Demodex spp., 57.5% (23) presented follicular opening and in 50% (20) dilated blood vessels were identified. Conclusions: the dermatoscopic findings of Demodex spp. are related to the population density of Demodex spp. The dermatoscope is a valuable tool for the dermatologist, allows the in vivo visualization of Demodex spp. vital to diagnose the clinical presentations of demodicidosis and evaluate the response to treatment.