scholarly journals Tinea capitis: study of asymptomatic carriers and sick adolescents, adults and elderly who live with children with the disease

Author(s):  
Christiane Loureiro BERGSON ◽  
Nurimar Conceição FERNANDES

Tinea capitis is a dermatophyte infection that occurs mainly in childhood; there are few reports, in Brazil, in adolescents and adults. The detection of asymptomatic carriers is of great importance in the disease control. From February 1998 to February 1999, a study was performed at the outpatient Dermatologic Unit of Instituto de Puericultura e Pediatria Martagão Gesteira (Universidade Federal do Rio de Janeiro, Brasil) to verify the frequency of asymptomatic carriers and tinea capitis between 79 adolescents, adults and elderly who lived in the same household of 56 children (0-12 years) with tinea capitis. Of these, one female and one male adults (2.5%) were asymptomatic carriers and the cultures revealed Trichophyton tonsurans and Microsporum canis respectively. One female adolescent and two female adults (3.8%) had tinea capitis and all cultures revealed Trichophyton tonsurans. The study has shown that adolescents and adults who live in the same household of children with tinea capitis may be sick or asymptomatic carriers.

2005 ◽  
Vol 80 (6) ◽  
pp. 597-602 ◽  
Author(s):  
Silvio Alencar Marques ◽  
Rosangela Maria Pires de Camargo ◽  
Aline Helena Gonzáles Fares ◽  
Renata Mayumi Takashi ◽  
Hamilton Ometto Stolf

FUNDAMENTOS: Tinea capitis é importante infecção fúngica de interesse dermatológico e pediátrico. No Brasil sua prevalência é desconhecida, e os agentes causais principais são o Trichophyton tonsurans nas regiões Norte-Nordeste e o Microsporum canis no Sul-Sudeste do país. Conhecimento sobre gênero e espécies mais prevalentes tem importância sanitária e terapêutica. OBJETIVOS: Identificar espécies de dermatófitos, causa de Tinea capitis, em serviço universitário que atende clientela do Sistema Único de Saúde, de procedência urbana e rural, no interior do Estado de São Paulo. MÉTODOS: Amostras de casos clínicos suspeitos de Tinea capitis, procedentes da área de abrangência da Faculdade de Medicina de Botucatu-Unesp, foram investigadas por exame direto e cultivo visando ao diagnóstico e isolamento do agente causal. RESULTADOS: De 1.055 suspeitas, 594 foram confirmadas por exame direto, em 364 (61,1%) isolou-se o agente: M. canis em 88,2%, seguindo-se T. tonsurans (4,7%), T. rubrum (3,3%), M. gypseum (1,9%), T. mentagrophytes (1,6%). O sexo masculino correspondeu a 55,7% dos casos, e a faixa etária entre 0-5 anos predominou com 62,6% (p < 0,05). CONCLUSÕES: A prevalência detectada do M. canis superou o esperado para a Região Sudeste do Brasil. A freqüência de 88,2% pode estar influenciada por pacientes procedentes da zona rural. Esse dado deve ser considerado quando de decisão terapêutica.


2016 ◽  
Vol 6 (2) ◽  
pp. 34
Author(s):  
Franky Chandra

Objective: Tinea capitis is a common dermatophyte infection affecting hair and skin which always requires systemic treatment to get a clinical and mycologic cure, preventing relapse, and infection spread. Griseofulvin has been the antifungal therapy of choice for tinea capitis, but it often requires higher doses and a longer duration than recommended. Thus, effective alternative antifungal with good oral tolerability and shorter course of treatment are therefore required. The objective of this report is to evaluate the effectiveness of double pulse dose terbinafine for tinea capitis alternative therapy.Method: A case of kerion type of tinea capitis in a two-year-old girl was reported. Diagnosis was established based on clinical manifestations of alopecia, presented as erythematous macule with pustules, hemorrhagic crusts, and scales on the scalp, accompanied with occipital lymphadenopathy. Fungal culture showed growth of Microsporum canis (M. canis) colonies. Patient was treated with doubled pulse dose terbinafine 125 mg/day and 2% ketoconazole shampoo for two months.Result: Clinical improvements were found on 35th day of follow up, while mycologic cure was achieved on 60th day of follow up. Tolerability was excellent and no side effects observed.Conclusion: Double pulse dose terbinafine is effective for kerion type of tinea capitis. Key words: double pulse dose, kerion, M. canis, terbinafine, tinea capitis


2021 ◽  
Vol 186 (2) ◽  
pp. 299-305
Author(s):  
Zhihui Yang ◽  
Wei Chen ◽  
Zhe Wan ◽  
Yinggai Song ◽  
Ruoyu Li

AbstractTinea capitis is a type of dermatophyte infection primarily affecting children. We report a case of an elderly woman with well-controlled diabetes mellitus presenting with a six-month history of erythema with yellow crusts on her scalp and extensive erythematous patches with scales on the body skin. She adopted a stray cat before the disease onset. Dermoscopic findings and manifestation under the Wood’s lamp favoured the diagnosis of tinea capitis. Further microscopic examinations of her scalp, including direct KOH and fluorescence stain examination, fungal culture and polymerase chain reaction sequencing identification confirmed the diagnosis of tinea capitis caused by Microsporum canis. Treatment with oral terbinafine was effective. Adult tinea capitis is often misdiagnosed due to its rarity and atypical presentation. However, in some regions, the incidence of tinea capitis in immunocompetent adults is rising which requires the awareness of clinicians. A thorough history (including the animal contacting history), physical examination and further mycological examinations are required for diagnosis. Trichophyton violaceum is the most common dermatophyte species in most regions while adult tinea capitis caused by Microsporum canis is less common. Terbinafine, griseofulvin and itroconazole have been reported to be effective drugs for the treatment of tinea capitis, and terbinafine can be considered as systemic treatment in elderly patients with comorbidities to reduce the drug–drug interaction.


2013 ◽  
Vol 13 (04) ◽  
pp. 262-269 ◽  
Author(s):  
C. Krüger ◽  
I. Schulze ◽  
B. Lietzberg ◽  
H. Friedlein ◽  
G. Ginter-Hanselmayer ◽  
...  

ZusammenfassungDas klinische Spektrum und die Erreger der Dermatophytosen unterscheiden sich deutlich zwischen Kindern und Erwachsenen. Im Gegensatz zu Erwachsenen, bei denen die Tinea pedis die häufigste Pilzinfektion der Haut darstellt, werden bei Kindern vor allem die Tinea corporis und Tinea capitis diagnostiziert. Eine neue und beunruhigende Entwicklung ist die Zunahme der Onychomykose – meist durch Trichophyton rubrum – im Kindesalter. Die Tinea capitis stellt eine diagnostische und vor allem therapeutische Herausforderung für Kinderärzte und auch Dermatologen dar. Erreger der Tinea capitis sind in Deutschland vorzugsweise zoophile Dermatophyten. An erster Stelle steht Microsporum canis, das Verhältnis verschiebt sich jedoch mehr und mehr zu den zoophilen Trichophyton-Arten, z. B. Trichophyton interdigitale (früher Trichophyton mentagrophytes). Trichophyton species von Arthroderma benhamiae ist ein neuer Erreger, der im Kindesalter wahrscheinlich mittlerweile alle anderen zoophilen Dermatophyten in Bezug auf die Häufigkeit überflügelt hat. Seltener werden Trichophyton verrucosum – Erreger der „Kälberflechte“ – und Trichophyton erinacei („Igelpilz“) isoliert. Anthropophile Erreger, wie Microsporum audouinii und Trichophyton tonsurans, müssen Anlass sein, nach der Infektionsquelle zu fahnden. Das kann ein familiärer Immigrationshintergrund sein oder auch die Infektion in einem Kampfsportverein (Tinea gladiatorum capitis et corporis).


2019 ◽  
Author(s):  
Siti Amira Venitarani ◽  
Samsriyaningsih Handayani ◽  
Evy Ervianti

Tinea capitis is dermatophyte infection of the scalp and hair, affecting mainly prepubertal children. Its incidence has increased over the last decades. If not diagnosed and treated properly, it might reach epidemic soon. This study was descriptive retrospective study which evaluated the incidence and profile of tinea capitis among patients of Micology Division, Outpatient Clinic of Dermatology and Venereology Department, Dr. Soetomo General Hospital Surabaya in 2014 - 2016. There were 42 tinea capitis new cases. It was most prevalent among the age group of 5-14 years old. Male was more common. The most common main complaint was itching. The most frequent predisposing factor was cat exposure. Squama was the most prevalent efflorescence. KOH examination data showed that 57.1% patients were arthrospore positive and 66.7% were positive in Wood lamp examination. Culture was done among 24 patients with positive result of 52.4% and Microsporum canis as the most prevalent dermatophytes. There were 33.3% patients diagnosed with grey patch type. The most common treatment was oral griseofulvin. Follow-ups were done to all patients but only 64.3% who visited back.


PEDIATRICS ◽  
1993 ◽  
Vol 92 (1) ◽  
pp. 155-157
Author(s):  
KAREN VARGO ◽  
BERNARD A. COHEN

The epidemiology of tinea capitis has changed over the past 40 years. The major organism responsible for tinea capitis today is Trichophyton tonsurans. This dermatophyte accounts for more than 90% of ringworm infections of the scalp in the United States and replaces Microsporum audouinii and to a lesser extent Microsporum canis, which were associated with the ringworm epidemics of the 1940s.1-4 Trichophyton tonsurans is an anthropophilic organism producing endothrix invasion of the hair shaft that does not fluoresce on Wood's light examination.5 Tinea capitis is epidemic in black school-age children, but only rarely in whites. The reason for this racial predilection is not known.1


1992 ◽  
Vol 34 (3) ◽  
pp. 233-238 ◽  
Author(s):  
Loan Towersey ◽  
Roderick James Hay ◽  
Maria Helena Monteiro ◽  
Márcio Brito Lago ◽  
Eunice de Castro Soares Martins ◽  
...  

18 girls from an orphanage (Orfanato Santo Antônio) in Niterói presented tinea capitis due to Trichophyton tonsurans (15 cases - 83.3%) and Microsporum canis (3 cases - 26.7%). Comments are made about clinical, mycological and therapeutic aspects of this microepidemy


2019 ◽  
pp. 79-84
Author(s):  
Chihyeon Sohng ◽  
Jun Young Kim ◽  
Kyung Duck Park ◽  
Yong Hyun Jang ◽  
Seok-Jong Lee ◽  
...  

Background: Tinea capitis is a contagious fungal infection that occurs predominantly in childhood. Although its incidence has declined, its epidemiological and mycological characteristics are continue to evolve. Objective: To assess changes in the epidemiological and mycological characteristics of tinea capitis in teenage patients in Southeastern Korea. Methods: We retrospectively investigated epidemiological and mycological characteristics of 202 teenage patientswith tinea capitis who visited Kyungpook National University Hospital and the Catholic Skin Disease Clinic from 1989-2018. Results: Of 202 patients, 177 patients showed KOH-positivity. Dermatophytes were cultured from 157 patients. The annual incidence of tinea capitis ranged from 0 to 30 between 1989 and 2018. Of 202 patients, 153 patients (75.74%) were male and 49 patients (24.26%) were female. The ratio of male to female was 1:0.32. For seasonal distribution, 78 patients (38.61%) visited our hospital in winter, 59 patients (29.21%) visited in spring, 35 patients (17.33%) visited in fall, and 30 patients (14.85%) visited in summer. Microsporum canis was the most common dermatophyte (44.06%) isolated from tinea capitis. Trichophyton tonsurans was the second most common dermatophyte (26.73%). For inhabitancy distribution, 151 patients (74.75%) lived in urban areas and 51 (25.25%) lived in rural areas. Conclusion: The epidemiological characteristics of teenage patients with tinea capitis were distinct from those of adults in annual incidence, sexual distribution and isolated dermatophytes. Trichophyton tonsurans was the main causative organism of tinea capitis in recent 10 years. These results are useful for the targeted treatment and prevention of tinea capitis.


2019 ◽  
Vol 34 (3) ◽  
pp. 137-145
Author(s):  
Khawila S. O. Bubaker

The aim of this study was to isolate and identify dermatomycosis causing dermatophysis in EL- Beida, Libya. In this study  253 cases of skin infection were collected from the dermatology unit at  EL- Thoura hospital in EL- Beida, Libya. These cases clinically diagnosed as superficial mycosis ,130 ( 51.4%) were isolated from males and  123 ( 48.6% )  were females. These cases were classified into 5 groups according to age (1-10, 11-20, 21-31, 31-40 and above 40 year). Our results showed that young ages were more liable to infection than adult. The cases  involved in this investigation represented different occupations. The highest incidence was recorded between school children 40.3 %, followed by workers, farmers and others  29.2%, house wives  17.8%  while it was 12.6% among children less than 5 years. Concerning the clinical and mycological finding, it was noticed that 74 (63.8%) cases gave positive culture while the remaining cases were negative. Scalp infection was the most common clinical finding, in this study Tinea capitis was the most frequent  42.8%  cases,  Microsporum canis and Trich ophyton violaceum were the most common fungi isolated. Tinea corporis and Tinea cruris were diagnosed clinically in 68 (26.8%) cases,  24.4% were from  Tinea corporis while the fungus isolated were   Microsporum canis 41% , Epidermophyton floccosum  14% and Tinea cruris with incidence of  0.8% in which Trichophyton  tonsurans was the only fungus isolated . Onychomycosis and Tinea pedis were seen in  3.4% and the most important isolated agents were  Epidermophyton floccosum 50%, followed by  Microsporum canis and Trichophyton rubrum  25% for each.  This study demonstrates that the prevalence of dermatophytoses in EL- Beida cit, was high (47%), and was more common in males than females. The present study has also indicated that tinea capitis was the dominant (43%).


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