| خلاصه مقاله | The dermatophytes are a group of closely related fungi
that have the ability to invade keratinized tissue of humans
and animals and produce an infection, which named
dermatophytosis. dermatophytosis are considered as one of the major public health problems in many parts of the
world .The aim of this study was to determine the
prevalence and identification of dermatophytosis in Tabriz .
This study was conducted for a period of 4 year during
2007 to 2011. A total of 494 skins, nails, and hair samples
were positive for dermatophytes were collected from
patients who referred to clinic 2 Tabriz University of
medical sciences. Samples were examined directly with
the 10% KOH (potassium hydroxide) mounts. Culture was
done on Mycobiotic agar media and incubated at 30˚C for
3-4 weeks.
Trichophyton mentagrophytes was the most frequently
isolated species accounting for 152 cases (34.16%) of the
strains followed by Epidermophyton floccosum 126 cases
(28.31%), T. verrucosum and T. tonsurans each of them
45 cases (10.11%), Microsporum canis 32 cases (7.19%),
T. rubrum 29 cases (6.22%), T. violaceum 8 cases (1.8%),
less frequent isolates were M. gypseum and T. schoenleinii
each of them 4 cases (0.9%). We had 49 culture negative
cases. The distribution of infection according to body sites
were: Tinea cruris 163 cases (32.99%), Tinea corporis and
Tinea pedis each of them 108 cases (21.86%), Tinea
unguium 48 cases (9.72%), Tinea capitis 37 cases (7.49%)
, Tinea manuum 25 cases (5.06%) and Tinea barbae 5
cases (1.01%). The frequency rate of all types of tinea
was higher in males (63.56%) than in females (36.44%).
Our study reveals the importance of T. mentagrophytes
and the appreciable frequency of E. floccosum in patients
who referred to clinic 2 Tabriz University of medical
sciences Tabriz, Iran. The recognition of the changing
prevalence in the causative dermatophyte species should
help with the treatment approach and for potential
implementation of control measures |