Diagnóstico laboratorial de Pitiríase versicolor em hospital público de Cuité - PB.

Abstract

Pityriasis versicolor is a superficial fungal infection, has Malassezia as the etiologic agent. The biggest problem of this mycosis is aesthetic, because the hypochromic lesions. There are several predisposing factors for development of this mycosis, including heredity, depressed immunity, skin oils, high temperatures and humidity. Lesions normally for distributing according to the sebaceous glands is normally spread on the neck, cheek, anterior and posterior trunk. Pityriasis versicolor is not a notifiable disease, there is not an accuracy as the number of infected people. Thus, this study aimed to determine the prevalence of this infection in patients from municipal hospital Cuité-PB. The sample collection was performed in the collections room at Hospital Nossa Senhora das Mercês. To this end, skin scales used for direct mycological examination, performed with potassium hydroxide 20% and tintar Parker (2:1), and for the culture Mycosel Agar supplemented with olive oil and ox bile were either harvested. Subsequently, the presence or absence of yeast with blastoconidia and/or short and twisted hyphae was observed under the microscope. The processing of biological material was performed in the laboratory of Clinical Microbiology, Federal University of Campina Grande, PB - Campus Cuité. Samples were analyzed from 17 patients with clinical suspicion of pityriasis versicolor, of which 41.18% were positive for Malassezia and male sex was predominant with 57.14%. As to the sites of lesions, anterior trunk prevailed with 42.86%. The study, in addition to generating epidemiological data for the municipality assisted the establishment of appropriate therapy as the results of laboratory tests were made available to patients.