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    "titulo" => "Interdigital Erythrasma&#58; Clinical&#44; Epidemiologic&#44; and Microbiologic Findings"
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    "resumen" => array:2 [
      "en" => array:2 [
        "titulo" => "Abstract"
        "resumen" => "<span class="elsevierStyleSectionTitle">Background</span><p class="elsevierStyleSimplePara elsevierViewall">Erythrasma is a superficial infection caused by <span class="elsevierStyleItalic">Corynebacterium minutissimum</span> and affects the major skin folds and the interdigital regions of the feet&#46; It is characterized by erythematous&#44; brown&#44; scaly patches and maceration&#44; and exhibits coral-red fluorescence under Wood light&#46;</p> <span class="elsevierStyleSectionTitle">Objective</span><p class="elsevierStyleSimplePara elsevierViewall">The aim of this study was to determine the frequency of erythrasma in patients with interdigital lesions&#46;</p> <span class="elsevierStyleSectionTitle">Methods</span><p class="elsevierStyleSimplePara elsevierViewall">An open&#44; prospective&#44; longitudinal&#44; observational study was performed in a hospital in Mexico City between March and December&#44; 2006&#46; All patients with interdigital lesions were examined with a Wood lamp and direct examination was performed with 20&#37; potassium hydroxide&#46; Cultures were done in Sabouraud dextrose agar and brain heart infusion agar&#44; and smears were analyzed&#46; General characteristics and concomitant diseases were recorded&#46;</p> <span class="elsevierStyleSectionTitle">Results</span><p class="elsevierStyleSimplePara elsevierViewall">We examined 73 patients&#44; of whom 24 &#40;32&#46;8&#37;&#41; were diagnosed with erythrasma based on coralred fluorescence under Wood light and identification of corynebacteria by Gram staining&#46; The disease was more common in women &#40;83&#46;33&#37;&#41; and the mean age of the patients was 43&#46;5 years&#46; The main clinical findings were scaling and maceration&#44; and the fourth interdigital web was the most commonly affected&#46; <span class="elsevierStyleItalic">Corynebacterium</span> could not be isolated in any of the cases&#46; Mycology was positive in 15 cases &#40;62&#46;5&#37;&#41; and the following microorganisms were isolated&#58; <span class="elsevierStyleItalic">Candida</span> &#40;16&#46;6&#37;&#41;&#44; dermatophytes &#40;12&#46;5&#37;&#41;&#44; and <span class="elsevierStyleItalic">Trichosporon</span> &#40;4&#46;1&#37;&#41;&#46;</p> <span class="elsevierStyleSectionTitle">Conclusions</span><p class="elsevierStyleSimplePara elsevierViewall">Interdigital erythrasma is a common condition and can be easily confused with interdigital tinea&#46; It persists if not treated appropriately&#46; Rapid diagnosis is easily obtained by examination with a Wood lamp&#44; while culture is difficult and unnecessary for diagnosis&#46; The coexistence of erythrasma with dermatophytes and <span class="elsevierStyleItalic">Candida</span> should be considered when the interdigital webs are affected&#46;</p>"
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        "resumen" => "<span class="elsevierStyleSectionTitle">Antecedentes</span><p class="elsevierStyleSimplePara elsevierViewall">El eritrasma es una infecci&#243;n superficial causada por <span class="elsevierStyleItalic">Corynebacterium minutissimum</span>&#44; que afecta grandes pliegues y regiones interdigitales de los pies&#46; Existe eritema&#44; descamaci&#243;n&#44; manchas color marr&#243;n y maceraci&#243;n&#59; se presenta con fluorescencia rojo coral con luz de Wood&#46;</p> <span class="elsevierStyleSectionTitle">Objetivo</span><p class="elsevierStyleSimplePara elsevierViewall">Determinar la frecuencia de eritrasma en pacientes con lesiones interdigitales&#46;</p> <span class="elsevierStyleSectionTitle">M&#233;todos</span><p class="elsevierStyleSimplePara elsevierViewall">Se realiz&#243; un estudio prospectivo&#44; abierto&#44; observacional y longitudinal en un hospital de la ciudad de M&#233;xico de marzo a diciembre de 2006&#46; A todos los pacientes con lesiones interdigitales se les realiz&#243; luz de Wood&#44; examen directo con hidr&#243;xido de potasio al 20&#37;&#44; cultivo en agar dextrosa Sabouraud&#44; frotis y cultivo en infusi&#243;n cerebro-coraz&#243;n&#46; Se documentaron los datos generales y enfermedades concomitantes&#46;</p> <span class="elsevierStyleSectionTitle">Resultados</span><p class="elsevierStyleSimplePara elsevierViewall">Examinamos 73 pacientes&#44; 24 &#40;32&#44;8&#37;&#41; presentaron eritrasma diagnosticado por la fluorescencia rojo coral y la identificaci&#243;n de la corinebacteria por tinci&#243;n de Gram&#46; Fue m&#225;s frecuente en mujeres &#40;83&#44;33&#37;&#41; y la edad promedio fue 43&#44;5 a&#241;os&#46; Los principales datos cl&#237;nicos fueron descamaci&#243;n y maceraci&#243;n y el cuarto pliegue fue el m&#225;s afectado&#46; En ning&#250;n caso se pudo aislar el microorganismo en el cultivo&#46; El examen micol&#243;gico fue positivo en 15 casos &#40;62&#44;5&#37;&#41; y se aislaron&#58; <span class="elsevierStyleItalic">Candida</span> &#40;16&#44;6&#37;&#41;&#44; dermatofitos &#40;12&#44;5&#37;&#41; y <span class="elsevierStyleItalic">Trichosporon</span> &#40;4&#44;1&#37;&#41;&#46;</p> <span class="elsevierStyleSectionTitle">Conclusiones</span><p class="elsevierStyleSimplePara elsevierViewall">El eritrasma interdigital es frecuente y puede confundirse f&#225;cilmente con ti&#241;a interdigital&#46; Es persistente sin tratamiento adecuado&#46; El diagn&#243;stico es r&#225;pido y accesible con luz de Wood y el cultivo es dif&#237;cil y no es indispensable para el diagn&#243;stico&#46; Debe considerarse la coexistencia de eritrasma con dermatofitos y <span class="elsevierStyleItalic">Candida</span> cuando afecta los pliegues inerdigitales&#46;</p>"
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Vol. 99. Issue 6.
Pages 469-473 (August 2008)
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Vol. 99. Issue 6.
Pages 469-473 (August 2008)
Original articles
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Interdigital Erythrasma: Clinical, Epidemiologic, and Microbiologic Findings
Eritrasma Interdigital: Datos Clínicos, Epidemiológicos y Microbiológicos
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9748
M.L. Morales-Trujillo, R. Arenas
Corresponding author
rarenas98@hotmail.com

Correspondence: Sección de Micología, Hospital General Dr. Manuel Gea González, Calzada de Tlalpan 4800, Tlalpan, México D.F. CP 14000, México.
, S. Arroyo
Sección de Micología, Hospital General Dr. Manuel Gea González, Secretaría de Salud, Tlalpan, Mexico
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Article information
Abstract
Background

Erythrasma is a superficial infection caused by Corynebacterium minutissimum and affects the major skin folds and the interdigital regions of the feet. It is characterized by erythematous, brown, scaly patches and maceration, and exhibits coral-red fluorescence under Wood light.

Objective

The aim of this study was to determine the frequency of erythrasma in patients with interdigital lesions.

Methods

An open, prospective, longitudinal, observational study was performed in a hospital in Mexico City between March and December, 2006. All patients with interdigital lesions were examined with a Wood lamp and direct examination was performed with 20% potassium hydroxide. Cultures were done in Sabouraud dextrose agar and brain heart infusion agar, and smears were analyzed. General characteristics and concomitant diseases were recorded.

Results

We examined 73 patients, of whom 24 (32.8%) were diagnosed with erythrasma based on coralred fluorescence under Wood light and identification of corynebacteria by Gram staining. The disease was more common in women (83.33%) and the mean age of the patients was 43.5 years. The main clinical findings were scaling and maceration, and the fourth interdigital web was the most commonly affected. Corynebacterium could not be isolated in any of the cases. Mycology was positive in 15 cases (62.5%) and the following microorganisms were isolated: Candida (16.6%), dermatophytes (12.5%), and Trichosporon (4.1%).

Conclusions

Interdigital erythrasma is a common condition and can be easily confused with interdigital tinea. It persists if not treated appropriately. Rapid diagnosis is easily obtained by examination with a Wood lamp, while culture is difficult and unnecessary for diagnosis. The coexistence of erythrasma with dermatophytes and Candida should be considered when the interdigital webs are affected.

Key words:
Erythrasma
Corynebacterium minutissimum
Wood light
Resumen
Antecedentes

El eritrasma es una infección superficial causada por Corynebacterium minutissimum, que afecta grandes pliegues y regiones interdigitales de los pies. Existe eritema, descamación, manchas color marrón y maceración; se presenta con fluorescencia rojo coral con luz de Wood.

Objetivo

Determinar la frecuencia de eritrasma en pacientes con lesiones interdigitales.

Métodos

Se realizó un estudio prospectivo, abierto, observacional y longitudinal en un hospital de la ciudad de México de marzo a diciembre de 2006. A todos los pacientes con lesiones interdigitales se les realizó luz de Wood, examen directo con hidróxido de potasio al 20%, cultivo en agar dextrosa Sabouraud, frotis y cultivo en infusión cerebro-corazón. Se documentaron los datos generales y enfermedades concomitantes.

Resultados

Examinamos 73 pacientes, 24 (32,8%) presentaron eritrasma diagnosticado por la fluorescencia rojo coral y la identificación de la corinebacteria por tinción de Gram. Fue más frecuente en mujeres (83,33%) y la edad promedio fue 43,5 años. Los principales datos clínicos fueron descamación y maceración y el cuarto pliegue fue el más afectado. En ningún caso se pudo aislar el microorganismo en el cultivo. El examen micológico fue positivo en 15 casos (62,5%) y se aislaron: Candida (16,6%), dermatofitos (12,5%) y Trichosporon (4,1%).

Conclusiones

El eritrasma interdigital es frecuente y puede confundirse fácilmente con tiña interdigital. Es persistente sin tratamiento adecuado. El diagnóstico es rápido y accesible con luz de Wood y el cultivo es difícil y no es indispensable para el diagnóstico. Debe considerarse la coexistencia de eritrasma con dermatofitos y Candida cuando afecta los pliegues inerdigitales.

Palabras clave:
eritrasma
Corynebacterium minutissimum
luz de Wood
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Copyright © 2008. Academia Española de Dermatología y Venereología and Elsevier España, S.L.
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