Korean J Dermatol.  2016 Dec;54(10):781-787.

Clinical Study of Onychomycosis Observed in Children (2005~2014)

Affiliations
  • 1Department of Dermatology, Chonnam National University Medical School, Gwangju, Korea. yhwon@chonnam.ac.kr

Abstract

BACKGROUND
Pediatric onychomycosis has been previously investigated; however, the specific causative agents of onychomycosis in Korean children have not been reported.
OBJECTIVE
This study aimed to determine the most common causative agents of onychomycosis in Korean children.
METHODS
We reviewed the medical records of 149 pediatric patients (<18 years of age) referred for fungal cultures because of a clinical suspicion of onychomycosis between 2005 and 2014 at our clinic. Patient specimens were cultured on Sabouraud's dextrose agar with and without cycloheximide.
RESULTS
Onychomycosis was clinically suspected in 149 children. Of the 44 patients with onychomycosis, confirmed by culture, 72.7% had toenail onychomycosis, 22.7% had fingernail onychomycosis, and 4.5% had toenail and fingernail onychomycosis. The male-to-female patient ratio was 1.93:1. Fourteen (31.8%) children had concomitant tinea pedis, and 12 (27.2%) had family members with tinea pedis or onychomycosis. Distal and lateral subungual onychomycosis were the most common (68%) clinical types. Trichophyton rubrum was the most frequently isolated pathogen (66.7%), followed by Candida albicans (14.8%), Microsporum canis (11.1%), Candida parapsilosis (3.7%), and Candida tropicalis (3.7%). Candida albicans was the most commonly isolated pathogen (50.0%) in fingernail onychomycosis.
CONCLUSION
Pediatric onychomycosis is more common than most people think. Thus, we suggest the need for a careful mycological examination of children with suspected onychomycosis.

Keyword

Children; Onychomycosis

MeSH Terms

Agar
Candida
Candida albicans
Candida tropicalis
Child*
Clinical Study*
Cycloheximide
Glucose
Humans
Medical Records
Microsporum
Nails
Onychomycosis*
Tinea Pedis
Trichophyton
Agar
Cycloheximide
Glucose
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