Manifestações
clÃnicas: as áreas de pele mais
oleosa, como a face, couro cabeludo, pescoço e a porção superior do tronco são
as mais frequentemente atingidas; formam manchas claras, acastanhadas ou
avermelhadas que se iniciam pequenas e podem se unir formando manchas maiores;
podem apresentar coceiras.
O diagnóstico definitivo se da somente pelo exame direto através da observação de blastoconidios em cachos e hifas curtas e curvas
e elementos redondos.
A Malassezia furfur não cresce nos meios
de cultura habituais usados na rotina porque necessita de suplemento lipÃdico para seu
crescimento.
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O diagnóstico pode ser feito pelo exame micológico
direto. A coleta é feita por raspagem sobre uma lâmina, com o uso de um agente
clarificador que retira a queratina. O KOH 10-40% é a base mais comumente
utilizada. Observam-se hifas curtas e largas, elementos leveduriformes arredondados,
isolados ou agrupados em cachos de uva.
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