Department of Dermatology, Chacha Nehru Bal Chikitsalaya, Geeta Colony, New Delhi, India.
Indian J Dermatol Venereol Leprol. 2010 Sep-Oct;76(5):527-32. doi: 10.4103/0378-6323.69078.
Tinea capitis (TC) is a common superficial fungal infection seen predominantly in children. The etiological factors vary from one region to the other. The clinical and microbiological characteristics of the same were studied in patients up to the age of 12 years seen at a pediatric super specialty hospital in New Delhi, India.
To delineate the various patterns of TC observed in North India and to assess for any correlation between the clinical, microscopic and microbiologic findings in the patients seen. Also, to identify the common fungal species responsible for producing TC in North India.
Clinical morphology and KOH findings were studied in 214 patients with the suspected diagnosis of TC. Fungal culture were also performed for all the cases. An attempt was made to evaluate any correlation among the clinical, microscopic and etiological findings. The epidemiological factors associated with the disease were also assessed.
TC was found to be most common in the 8-10-year age group, with noninflmmatory TC being the more common type (56.5%). A mixed morphological pattern was recorded in 10% of the cases. Microscopic examination revealed an endothrix pattern of hair invasion to be more common (41.5% cases). Again, 8.8% of the cases showed foci of both endothrix and ectothrix pattern of invasion simultaneously. Trichophyton violaceum was the most common fungal species isolated.
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.
头癣（TC）是一种常见的浅表真菌感染，主要见于儿童。病因在不同地区有所不同。本研究旨在探讨印度新德里一家儿科专科医院 12 岁以下患者的临床和微生物特征。
描述印度北部观察到头癣的各种类型，并评估患者的临床、显微镜和微生物学检查结果之间的任何相关性。此外，确定在印度北部引起 TC 的常见真菌种类。
对 214 例疑似 TC 的患者进行临床形态学和 KOH 检查。对所有病例均进行真菌培养。试图评估临床、显微镜和病因学发现之间的任何相关性。还评估了与疾病相关的流行病学因素。
TC 最常见于 8-10 岁年龄组，非炎症性 TC 更为常见（56.5%）。10%的病例记录了混合形态。显微镜检查显示发内型入侵更为常见（41.5%的病例）。此外，8.8%的病例同时显示发内型和发外型入侵的焦点。紫色毛癣菌是最常见的分离真菌。
在本研究中，临床形态或 KOH 检查结果不能明确或单独预测涉及的物种。真菌种类产生的临床或显微镜模式存在一定程度的重叠。在临床检查和 KOH 检查中都观察到混合模式。然而，没有一个标本生长出超过一种真菌。
