Auricular Chromoblastomycosis: an atypical presentation case and review of literature

Chromoblastomycosis (CBM) is a chronic, localized deep fungal infection of the skin and subcutaneous tissues, caused by dematiaceous (black) fungi. We describe the case of 62 years-old-male patient, from a rural town, with seborrheic dermatitis for more than 10 years, and a desquamative lesion in the right ear, where no diagnosis of CBM was never made. Direct exam with KOH, macro and microscopic culture characteristics, epidemiological and clinical findings confirmed the diagnosis of CBM by Cladophialophora carrionii, the first case report of auricular lesions published in Venezuela

Evaluación del inmunoanálisis enzimático en el diagnóstico y seguimiento de pacientes con coccidioidomicosis

Este estudio evaluó el inmunoanálisis enzimático (IAE) para el diagnóstico y seguimiento de pacientes con coccidioidomicosis (CDM). Se utilizaron 360 muestras de suero: 38 provenientes de pacientes con diagnóstico clínico, micológico e inmunológico de CDM, 100 de individuos sanos, 50 de pacientes sensibilizados a la coccidioidina y 172 con otras patologías, empleando dos exoantígenos de Coccidioides spp. La sensibilidad del IAE fue de 71,1% para ambos antígenos, con especificidad de 98% (Ag 1) y 96% (Ag 2). Los valores predictivos positivos fueron de 93,1% (Ag 1) y 87,1% (Ag 2), y negativos de 89,9% (Ag 1) y 89,7% (Ag 2), con razones de verosimilitud positiva de 35,6 (Ag 1) y 17,8 (Ag 2) y negativa de 0,3 para ambos antígenos. La potencia global del IAE se estimó en 90,6% (Ag 1) y en 89,1% (Ag 2). El índice Kappa reflejó una buena concordancia con la IDD. No se observó correspondencia entre las absorbancias detectadas por el IAE y el título de anticuerpos específicos obtenido mediante IDD en el seguimiento de pacientes con CDM. Se observaron reacciones cruzadas con las muestras de suero de pacientes con paracoccidioidomicosis e histoplasmosis. Se concluyó que el IAE puede ser una técnica útil en el diagnóstico, más no en el seguimiento de pacientes con CDM.Evaluation of the enzymatic immune analysis in the diagnosis and follow-up of coccidioidomycosis patientsAbstract: This study evaluated the enzymatic immune analysis (EIA) procedure for the diagnosis and follow-up of coccidioidomycosis (CDM) patients. Three hundred and sixty (360) serum samples were studied using two exoantigens of Coccidioides spp.: 38 obtained from patients with clinical, mycological and immunological CDM diagnosis, 100 from healthy individuals, 50 from individuals sensitized to coccidiodine, and 172 from individuals with other pathologies. It was estimated a 71.1% of sensitivity for both antigens, with a 98% specificity (Ag 1), and 96% (Ag 2), positive predictive values of 93.1% (Ag 1) and 87.1% (Ag 2), and negative predictive values of 89.9% (Ag 1) and 89.7% (Ag 2). The positive verisimilitude rates were 35.6 (Ag 1) and 17.8 (Ag 2), and 0.3 negative verisimilitude rates for both antigens. The global potency of the EIA was estimated as 90.6% (Ag 1) and 89.1% (Ag 2). The Kappa index reflected a good concordance with the IDD. No correspondence between the absorbance detected by the EIA and the title of specific antibodies obtained through IDD was observed in the follow-up of CDM patients. Cross reactions with serum samples from paracoccidioidomycosis and histoplasmosis patients were observed. It was concluded that the EIA can be a useful technique for the diagnosis but not for the follow-up of CDM patients