Onychomycosis due to opportunistic molds

Abstract BACKGROUND: Onychomycosis are caused by dermatophytes and Candida, but rarely by non- dermatophyte molds. These opportunistic agents are filamentous fungi found as soil and plant pathogens. OBJECTIVES: To determine the frequency of opportunistic molds in onychomycosis. METHODS: A retrospect...

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Main Authors: Erick Obed Martínez-Herrera, Stefanie Arroyo-Camarena, Diana Luz Tejada-García, Carlos Francisco Porras-López, Roberto Arenas
Format: Article
Language:English
Published: Sociedade Brasileira de Dermatologia 2015-06-01
Series:Anais Brasileiros de Dermatologia
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0365-05962015000300334&tlng=en
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author Erick Obed Martínez-Herrera
Stefanie Arroyo-Camarena
Diana Luz Tejada-García
Carlos Francisco Porras-López
Roberto Arenas
author_facet Erick Obed Martínez-Herrera
Stefanie Arroyo-Camarena
Diana Luz Tejada-García
Carlos Francisco Porras-López
Roberto Arenas
author_sort Erick Obed Martínez-Herrera
collection DOAJ
description Abstract BACKGROUND: Onychomycosis are caused by dermatophytes and Candida, but rarely by non- dermatophyte molds. These opportunistic agents are filamentous fungi found as soil and plant pathogens. OBJECTIVES: To determine the frequency of opportunistic molds in onychomycosis. METHODS: A retrospective analysis of 4,220 cases with onychomycosis, diagnosed in a 39-month period at the Institute of Dermatology and Skin surgery "Prof. Dr. Fernando A. Cordero C." in Guatemala City, and confirmed with a positive KOH test and culture. RESULTS: 32 cases (0.76%) of onychomycosis caused by opportunistic molds were confirmed. The most affected age group ranged from 41 to 65 years (15 patients, 46.9%) and females were more commonly affected (21 cases, 65.6%) than males. Lateral and distal subungual onychomycosis (OSD-L) was detected in 20 cases (62.5%). The microscopic examination with KOH showed filaments in 19 cases (59.4%), dermatophytoma in 9 cases (28.1%), spores in 2 cases (6.25%), and filaments and spores in 2 cases (6.25%). Etiologic agents: Aspergillus sp., 11 cases (34.4%); Scopulariopsis brevicaulis, 8 cases (25.0%); Cladosporium sp., 3 cases (9.4%); Acremonium sp., 2 cases (6.25%); Paecilomyces sp., 2 cases (6.25%); Tritirachium oryzae, 2 cases (6.25%); Fusarium sp., Phialophora sp., Rhizopus sp. and Alternaria alternate, 1 case (3.1%) each. CONCLUSIONS: We found onychomycosis by opportunistic molds in 0.76% of the cases and DLSO was present in 62.5%. The most frequent isolated etiological agents were: Aspergillus sp. and Scopulariopsis brevicaulis.
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spelling doaj.art-fd9822f020574bc2b5bd26051dcb1c312022-12-22T04:16:07ZengSociedade Brasileira de DermatologiaAnais Brasileiros de Dermatologia0365-05962015-06-0190333433710.1590/abd1806-4841.20153521Onychomycosis due to opportunistic moldsErick Obed Martínez-HerreraStefanie Arroyo-CamarenaDiana Luz Tejada-GarcíaCarlos Francisco Porras-LópezRoberto ArenasAbstract BACKGROUND: Onychomycosis are caused by dermatophytes and Candida, but rarely by non- dermatophyte molds. These opportunistic agents are filamentous fungi found as soil and plant pathogens. OBJECTIVES: To determine the frequency of opportunistic molds in onychomycosis. METHODS: A retrospective analysis of 4,220 cases with onychomycosis, diagnosed in a 39-month period at the Institute of Dermatology and Skin surgery "Prof. Dr. Fernando A. Cordero C." in Guatemala City, and confirmed with a positive KOH test and culture. RESULTS: 32 cases (0.76%) of onychomycosis caused by opportunistic molds were confirmed. The most affected age group ranged from 41 to 65 years (15 patients, 46.9%) and females were more commonly affected (21 cases, 65.6%) than males. Lateral and distal subungual onychomycosis (OSD-L) was detected in 20 cases (62.5%). The microscopic examination with KOH showed filaments in 19 cases (59.4%), dermatophytoma in 9 cases (28.1%), spores in 2 cases (6.25%), and filaments and spores in 2 cases (6.25%). Etiologic agents: Aspergillus sp., 11 cases (34.4%); Scopulariopsis brevicaulis, 8 cases (25.0%); Cladosporium sp., 3 cases (9.4%); Acremonium sp., 2 cases (6.25%); Paecilomyces sp., 2 cases (6.25%); Tritirachium oryzae, 2 cases (6.25%); Fusarium sp., Phialophora sp., Rhizopus sp. and Alternaria alternate, 1 case (3.1%) each. CONCLUSIONS: We found onychomycosis by opportunistic molds in 0.76% of the cases and DLSO was present in 62.5%. The most frequent isolated etiological agents were: Aspergillus sp. and Scopulariopsis brevicaulis.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0365-05962015000300334&tlng=enFungiOnychomycosisOpportunistic infections
spellingShingle Erick Obed Martínez-Herrera
Stefanie Arroyo-Camarena
Diana Luz Tejada-García
Carlos Francisco Porras-López
Roberto Arenas
Onychomycosis due to opportunistic molds
Anais Brasileiros de Dermatologia
Fungi
Onychomycosis
Opportunistic infections
title Onychomycosis due to opportunistic molds
title_full Onychomycosis due to opportunistic molds
title_fullStr Onychomycosis due to opportunistic molds
title_full_unstemmed Onychomycosis due to opportunistic molds
title_short Onychomycosis due to opportunistic molds
title_sort onychomycosis due to opportunistic molds
topic Fungi
Onychomycosis
Opportunistic infections
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0365-05962015000300334&tlng=en
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