A Mycologic Study from the Fourth Toe Web of the High School Studyent / 대한피부과학회지

Exogenoue exposurea to pathogenic fungi have been suggested as causes of acute atta.eks of tinea pedis. Psthogenic fungi is rarely present on the skin aurfaces without cauaing definite and characteristic reactions. However, it was suspected by eome observers that pathogenic fungi might be more or liesa normal inhabitant of the human skin. Alterations in host susceptibility and loss, of local immunity are more to blame than new exposure to exogenous micro-ganisms. To determine this point, fungal culture was done from the fourth toe web of 824 high school students. The results of the study were summarized as follows,' l. Among 824 cases, 780 cases(94.7%) had grossly normal appearing toe web and 44 cases(5,3%) were suspected superficial fungal infection. 2. Positive rate of KOH examination was 4.6%(36,'780) in normal toe web and 45.4%(20/44) in dermatophytic lesion. 3, The positive rate of fungal culture from normal and infected toe web are 7.9 %(62/780) a.nd 40.9%(18/44), respectively. In the normal toe web, Trichophyton rubrum(66.1%), T, entagrophytea(include T. interdigitaLe) and Epidermophyton, floccosum(3.2%) were isolated. In the dermatophytic lesion, T. rubrurn(88.8%) and T. me ntagrophytes(11.2% ) w ere isolated. Although toe webs do not present clinical symptoms and signs, pathogenic fungi as a normal inhabitant can be isolated from clinically normal toe webs. Some of these cases, therefore, will develope to tinea pedis in time.

A Clinical and Mycological Study of Cutaneous Candidiasis / 대한피부과학회지

This survey was done on 79 out-patients in order to investigate the present status of cutaneous candidiasis in clinical and mycological aspects in dermatologic clinic of Korea University Hospital from January, 1982 to July1983. Among the 79 specimens, 56 strains of candida species were identified by KOli mount, Sabourauds dextrose agar culture, sugar assimilation test, sugar fermentation test a.nd corn meal agar with Tween 80 culture. Following results were obtained. 1. The incidence of cutaneous candiasis was l. 6A (79 cases among 4, 963 outpatients). 2. The cutaneous candidiasis was more frequent in fcmale than in male(1: 1. 7) 3. The cutaneous candidiasis had its highest in.cidence during first decade (45 .6%). 4 Candidal intertrigo was the commonest type of the infection (51. 9%,) 5. Thrush, diaper candidiasis and candidal intertrigo were common during first. decade, and candidal paronychia and candidal onychia were common during third decade. 6, Positive rate on KOH mount was 60. 8% Nail (38. 5%) and periungal area (42.9%) should low positive rate. 7. Positive culture rate on Sabourauds dextrose agar of Candida species was 70. 9% (56 cases). 8 Candida species isolated from cutaneous lesions were Candida albicans (52 case) and Candida trapicalis(2 cases). Two species could not be identified.