The relevance of skin prick tests for Pityrosporum ovale in patients with head and neck dermatitis

Abstract

Our results clearly show that P. ovale-specific IgE is strongly related to the head and neck localization of atopic dermatitis, but RAST seems more sensitive than a prick test with the extract we used.

Atopic Dermatitis and Fungi

“…The clinical severity and total IgE level in serum for these patients were greater in patients with Malassezia-specific IgE antibodies than in patients with a negative response. Devos and van der Valk also studied the presence of specific IgE antibodies in patients with AD (28). However, In contrast to their SPT results, mentioned above, they found that 100% of patients with the head and neck distribution of AD had Malassezia-specific IgE antibodies compared to only 14% of AD patients without the head and neck distribution.…”

“…A total of 45% showed positive SPT responses, and the severity score of the head and neck lesions in the M. furfur SPT-positive group was significantly higher than in the M. furfur-negative group. In another study, Devos and van der Valk studied patients with AD, with and without the head and neck distribution, using SPT with a Malassezia extract and other procedures (28). In a total of 92 patients with AD (the majority were young adults), the SPT was positive in 40%.…”

Reclassificação taxonômica de espécies do gênero Malassezia: revisão da literatura sobre as implicações clinicolaboratoriais

“…As lesões localizam-se na cabeça, no couro cabeludo e no pescoço, e os pacientes apresentam altos títulos de IgE sérica contra esta levedura (8). Embora em quase 60% dos pacientes com dermatite atópica possam ser isoladas de sua pele espécies de Malassezia como M. globosa, M. furfur e M. sympodialis, isto corresponde a uma freqüência semelhante à observada em pele de pessoas saudáveis (23).…”

AISLAMIENTO E IDENTIFICACIÓN FENOTÍPICA Y GENOTÍPICA DE CEPAS DE Malassezia spp. EN PACIENTES CON PITIRIASIS VERSICOLOR

“…2,3 Los primeros reportes de Malassezia fueron en 1846 por Eichstedt y en 1853 por Robin, quienes reconocieron la naturaleza fúngica de pitiriasis versicolor (PV) describiendo la presencia de elementos levaduriformes y filamentosos en raspados de piel de un paciente con afección de PV. Sin embargo, el género Malassezia fue creado el año 1889 por Baillon en honor a Malassez, quien en 1874 había informado sobre células brotantes de varias formas en el estrato córneo de pacientes con diversas enfermedades a la piel.…”