Abstract:RESUMO
O estudo avaliou a prevalência da Tinea capitis na população estudantil duma Escola Primária e também identificou os agentes causais responsáveis. Escamas do couro cabeludo foram recolhidas das crianças apresentando sinais clínicos sugestivos de Tinea capitis. Dermatófitos foram identificados seguindo procedimentos micológicos padronizados. Este estudo encontrou uma prevalência clínica de Tinea capitis de 9,6% (110/1149). Os dermatófitos isolados foram Microsporum audouinii, Trichophyton violaceum e Tri… Show more
“…Sidat et al had reported the isolation of multiple isolates from a single specimen. [15] Interestingly, none of our samples showed growth of more than one fungal species, as may have been expected from morphology or KOH examination. We failed to isolate any cases with T. schoenlenii, unlike previous studies from similar geographical areas.…”
Section: Tinea Capitis In North Indiamentioning
confidence: 50%
“…Earlier reports have shown a positive isolation rate of 56-92%. [10,15] The predominant species seen by us was T. violaceum (responsible in almost 88.6% of all the culture-positive cases). This could be because our catchment area was a densely populated area, allowing close contact between children.…”
Section: Tinea Capitis In North Indiamentioning
confidence: 82%
“…The other type included children presenting initially with GPTC morphology, but who went on to develop pustules in a widespread distribution over the scalp within 1 week of starting treatment. Although previous studies have described isolation of multiple dermatophyte species from a single patient, [15] the coexistence of more than one morphological type of TC in a single child has only rarely been reported. [16] Examination of KOH-stained smears microscopically revealed different patterns of distribution of spores in the hair shaft.…”
In the present study, clinical morphology or KOH findings were not found to be clearly or exclusively predictive of the species involved. There was a fair degree of overlap in the clinical or microscopic patterns produced by the fungal species. Mixed patterns were observed both on clinical examination as well as on KOH examination. However, none of the specimens grew more than one fungal species.
“…Sidat et al had reported the isolation of multiple isolates from a single specimen. [15] Interestingly, none of our samples showed growth of more than one fungal species, as may have been expected from morphology or KOH examination. We failed to isolate any cases with T. schoenlenii, unlike previous studies from similar geographical areas.…”
Section: Tinea Capitis In North Indiamentioning
confidence: 50%
“…Earlier reports have shown a positive isolation rate of 56-92%. [10,15] The predominant species seen by us was T. violaceum (responsible in almost 88.6% of all the culture-positive cases). This could be because our catchment area was a densely populated area, allowing close contact between children.…”
Section: Tinea Capitis In North Indiamentioning
confidence: 82%
“…The other type included children presenting initially with GPTC morphology, but who went on to develop pustules in a widespread distribution over the scalp within 1 week of starting treatment. Although previous studies have described isolation of multiple dermatophyte species from a single patient, [15] the coexistence of more than one morphological type of TC in a single child has only rarely been reported. [16] Examination of KOH-stained smears microscopically revealed different patterns of distribution of spores in the hair shaft.…”
In the present study, clinical morphology or KOH findings were not found to be clearly or exclusively predictive of the species involved. There was a fair degree of overlap in the clinical or microscopic patterns produced by the fungal species. Mixed patterns were observed both on clinical examination as well as on KOH examination. However, none of the specimens grew more than one fungal species.
“…In Western and Central Africa, Trichophyton soudanense and Microsporum audouinii are the main anthropophilic species of TC. On the other hand, Trichophyton rubrum , Trichophyton mentagrophytes, and Tricholosporum violaceum are the most frequent causal agents of non‐TC dermatophytosis . Nevertheless, no recent studies about the prevalence of current fungal species are available in Angola.…”
We published for the first time the frequency of the skin disease spectrum in Fitzpatrick phototype V-VI Angolan population in Luanda City, highlighting the prevalence of acne, dermatophytosis, and atopic dermatitis.
“…It was observed that T. violaceum was main isolate from black dot type while T. mentagrophyte was the main isolate from grey patch and kerion lesions. TC is a common fungal infection, particularly among children in urban regions [8][9][10]. More often than not, it presents with mild scaling and little hair loss, which is reversible.…”
Introduction: Tinea capitis is a superficial fungal infection of scalp and hair caused by various species of dermatophytes. The incidence of Tinea capitis varies from country to country and region to region. Material and Methods: Fifty patients from the preschool going population were selected for the study. Results and Discussion: Clinical presentation of disease revealed that black dot to be the commonest (32%) followed by grey patch (28%), kerion (20%) and favus type was the least (1%). Direct microscopy of hair in KOH preparations revealed that all clinically suspected patients of Tinea capitis had endothrix type in 56% of cases and ectothrix type in 44%.
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