A comparative study of dermatophytosis in coal miners and dermatological outpatients (original) (raw)
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A Clinical-Mycological and Immunological Study of a Wide Spread Tinea Corporis
A wide spread Tinea corporis infections might be a tinea incognito which is a dermatophyte infection with atypical clinical features modified by the improper use of corticosteroids or calcineurin inhibitors, or due to poverty, poor hygiene, and unsanitary conditions. A total of 100 patients was investigated, 60 patients were 60 females and 40 males, female to male ratio 1.5 were included in the study. Tinea corporis was most prevalent in thethirties. The size of the individual skin lesion was more than 5cm up to 50cm. The mean duration of the disease was 9.5months (range 6-12 months). Sixty patients had a history of treatment with topical steroids because of missing the diagnosis as eczema and psoriasis. Microscopical examination revealed hyphae spores in most of the cases n=84 (84%). Mycological culture were positive in 93 cases (93%). The most frequently isolated dermatophyte had been Trichophyton rubrum, n= 53 cases (56% out of 93). This case series revealed Trichophyton rubrum as the most frequent agent of a wide spread tinea corporis. Immunological assay revealed no changes in the serum level of IgM and IgA, in IgG and C3 serum levels increase in 40 cases, normal in 50 cases, and decrease in 10 cases, whereas C4 serum level increase in 20 cases, normal in 40 cases, and decrease in 40 cases.
Extensive tinea corporis and tinea cruris et corporis due to trichophyton interdigitale
Journal of Dermatology & Cosmetology, 2019
Background: India is facing a gruesome epidemic-like scenario of chronic, extensive and recalcitrant dermatophytosis for the past 5-6 years. Dermatophytosis, also commonly known as tinea, used to be considered as trivial infection and was easy to treat. Unethical and irrational mixing of antibacterial and topical corticosteroid with antifungal agents has been instrumental for this extremely challenging situation. Applying such topical preparations for the treatment of dermatophytosis, without any oral antifungal agents can result in extensive lesions and also, fungal resistance. Objective: To find out the cause and dermatophyte species associated with the extensive lesions of tinea corporis. Patients and methods: A study was carried out in the tertiary care centre by the Department of Dermatology and Microbiology during the period starting from October 2016 to April 2017. A total of 158 patients were consented. Any patient with clinical findings of Tinea corporis and KOH and/or cult...
Infections caused by Trichophyton raubitschekii : clinical and epidemiological features
Mycoses, 1990
Thirty-eight cases of human infection with the recently described dermatophyte species Trichophyton raubitschekii were studied and a description is presented of the clinical and epidemiological features of infection with this organism. Results revealed the usual preponderance of males (2:1) but a high proportion of individuals of Asian origin (60.5 %) in the infected population. Tinea corporis, tinea cruris and tinea pedis were the most common infections. T. raubitschekii differed significantly from the more common Trichophytonrubrum and T. mentagrophytes in being more strongly associated with tinea corporis. Some T. raubitschekii infections produced inflammatory lesions while others clinically resembled those caused by the related species T. rubrum and T. mentagrophytes. T. raubitschekii could be distinguished from related species by means of special mycological procedures in the laboratory. Zusammenfassung. Achtunddreillig Mykosefalle am Menschen, die durch die kUrzlich beschriebene Dermatophytenart Trichophyton raubitschekii verursacht waren, worden hinsichtUch klinischer und epidemiologischer Charakteristika ausgewertet. Die Ergebnisse zeigten das UbUche zahlenmii8ige Obergewicht der Manner (2:1) sowie einen hohen Anteil von Patienten asiatischer Abstammung (60,5 %) in der infaierten Population. Tinea corporis, Tinea cruris und Tinea pedis machten den Hauptanteil der lnfektionen aus. T. raubitschekii unterschied sich signifikant vom hiiufigeren T. rubrum und T. mentagrophytes in der engeren Assoziation mit Tinea corporis. Einige T. raubitschekiilnfektionen flihrten zu entzUndlichen Liisionen, wiihrend andere klinisch mehr den durch T. rubrum und T. mentagrophytes verursachten iihnelten. T. raubitschekii konnte durch spezielle mykologische Laborverfahren von den verwandten Arten unterschieden werden.
International Journal of Dermatology, 2004
Background Over a 3-year period (March 1999 to March 2002, 944 patients with scalp lesions attended a dermatology reference center in the city of Fortaleza, Ceará, Brazil. Clinical specimens were examined at to detect patients with tinea capitis. Methods Specimens were obtained from pus, scales, and hairs from suspected lesions of tinea capitis. Mycologic analyses were conducted by direct microscopy and by fungal culture on Sabouraud dextrose agar, with or without chloramphenicol and Mycosel agar. The culture tubes were incubated at 28 ° C and examined daily for 1 month.
Epidemiological characteristics of tinea pedis in military
2018
Background: Tinea pedis is one of the widespread diseases of the world, which can infect people of all ages and sex. Approximately 70% of the world's population has suffered this pathology at least once in a life. The main causative pathogens of tinea pedis are: trichophyton rubrum, trichophyton mentagrophytes, epidermophyton floccosum. (1) Risk factor for spread of the disease are: young man (1/3 ratio to women), warm, humid environment, foot sweatness, physical activity, wearing closed shoes for a long time, contagiousness - common showers, swimming pool, barracks. Usually, military personnel are at risk of spreading the disease. Aim: The aim of this study is to represent epidemiological characteristics of Tinea pedis based on some researches conducted on military personnel of different countries. Methods: The review of the literature has been carried out using the "ScienceDirect", "Scopus" and "PubMed" scientific bases in order to define relevant...
Mycoses, 2002
Four cases of tinea capitis, two due to Trichophyton soudanense in Italian children who had had contact with Africans, and two due to Trichophyton schoenleinii in an African and an Italian child, respectively, are reported. Infections caused by anthropophilic dermatophytes are rare in Italy and are related to immigration. The most frequent agents of tinea capitis in Italy are zoophilic dermatophytes. Zusammenfassung. Wir beschreiben 4 Fälle von Tinea capitis bei Kindern, zwei davon mit Trichophyton soudanense als Erregern, die bei Italienern beobachtet wurden, die in Kontakt mit Afrikanern waren. Die anderen zwei Fälle, verursacht durch Trichophyton schoenleinii, waren jeweils bei einem italienischen und einem afrikanischen Kind beobachtet worden. Infektionen durch anthropophile Dermatophyten sind selten in Italien, wo die häufigste Ursache von Tinea capitis zoophile Dermatophyten sind. Sie sind eng mit dem Phänomen der Einwanderung verbunden.
A preliminary clinico-mycological study of dermatophytes infection
International Journal of Research in Medical Sciences
Background: Superficial fungal infections are the most common skin diseases, affecting millions of people throughout the world. Aim of the study was carried out to find, the effect of seasonal variation and socio-economic status on the prevalence of dermatophytes.Methods: A total of fifty clinically suspected cases of dermatophytosis were subjected to mycological studies.Results: Out of which 32 (64%) were culture positive Tinea corporis was the most common clinical type followed by Tinea cruris. Tricophoton rubrum 17/32 (53.12%) was the most common isolate followed by T. mentagrophytes 9/32(28.12%), T. tonsurans 3/32(9.37%), T. verrrucosum 2/32(6.25%) and T. schoenleinii 1/32(3.12%). Most of the patients belonged to the middle socio-economic group (28/50) followed by lower socio-economic group (19/50) maximum cases of dermatophytosis were reported from June to August revealing the fact that hot and humid weather during the monsoons has a great impact on the occurrence of dermatophy...
Tinea capitis and tinea corporis with a severe inflammatory response due to Trichophyton tonsurans
Acta dermato-venereologica, 2011
Trichophyton tonsurans is an anthropophilic dermatophyte, with a worldwide distribution, although its prevalence varies considerably between different geographical regions. Whereas in North America infections due to this fungus are exceptionally common, on the European continent they appear relatively seldom. Although T. tonsurans is primarily associated with tinea capitis, it can also be the cause of tinea corporis and tinea unguium. The course of infection is usually only mildly symptomatic. We describe here two cases of urease-positive T. tonsurans infections with atypically extensive cutaneous lesions and severe inflammatory responses. .
Journal de mycologie medicale, 2015
To determine the epidemiology of dermatophytosis in Palestinian patients, detect changes in the etiological agents during the last three decades, and to correlate between concomitant tinea pedis infections, and other cutaneous lesions. 220 suspected dermatophytosis patients were involved in this study. In an additional 38 cases, where consultation was prompted by tinea pedis, the presence of other lesions of concomitant dermatophytosis was studied, to further investigate the diagnosis. Clinical specimens were collected and identification of dermatophyte species was based on gross and microscopic morphology. Epidemiology of tinea capitis has gone the most radical changes in Palestine in the last three decades, with the zoophilic dermatophyte Microsporum canis replacing Trichophyton violaceum, becoming the predominant causative agent. During this study, 21.6% (38/176) patients with tinea pedis and concomitant lesions caused by the same dermatophytes at sites distant from the primary l...
Immune responses of patients with tinea imbricata
British Journal of Dermatology, 1983
Tinea imbricata is a chronic dermatophyte infection caused by Trichophyton concentricum affecting large areas of the skin surface. Spontaneous improvement is unusual and relapse after apparently successful treatment is common. In this study in Papua New Guinea it was found that a high proportion of infected patients had immediate-type hypersensitivity (52%) or negative responses (46%) to intradermal triehophytin. The majority of patients failed to develop delayed-type hypersensitivity on skin testing or as assessed in vitro by leucocyte migration inhibition. However, 78% of patients investigated had antibody to T. concentricum. The relevance of T-lymphocyte hyporeactivity to persistence of the infection is discussed. Tinea imbricata is the infection caused by the dermatophyte Trichophyton concentricum. It is confined to endemic areas in the Far East, the West Pacific and South America, although there are reports of scattered cases occurring elsewhere. Within these zones the disease may affect a large proportion of the population and it covers extensive areas of skin with concentric and lamellar scaling. The disease may be a great social burden to affected patients, who are less likely to marry, and it also causes intermittent severe irritation. In Papua New Guinea tinea imbricata is well recognized in lowland or coastal areas, (Schofield, Parkinson & Jeffrey, 1963) particularly in the East and West Sepik and the islands of Milne Bay Province where it is called grille or sipoma. It is also seen elsewhere, although less frequently. Patients with tinea imbricata are often chronically infected from early childhood and the infection usually relapses after an initial response to local or systemic antifungal therapy. Spontaneous remissions are rare. These observations suggest that there is widespread susceptibility in the population and that effective immunity does not develop or is suppressed in the course of infection. This is in striking contrast to certain other dermatophyte infections in man such as cattle ringworm T. verrucosum where lifelong immunity appears to follow infection