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  • Title: Cutaneous tuberculosis in China - A multicentre retrospective study of cases diagnosed between 1957 and 2013.
    Author: Zhang J, Fan YK, Wang P, Chen QQ, Wang G, Xu AE, Chen LQ, Hu R, Chen W, Song ZQ, Hao F.
    Journal: J Eur Acad Dermatol Venereol; 2018 Apr; 32(4):632-638. PubMed ID: 29476577.
    Abstract:
    BACKGROUND: China has one of the largest populations with tuberculosis worldwide. Cutaneous tuberculosis (CTB) is a rare manifestation of mycobacterial infection. Although CTB is well described, it is important to periodically revisit the prevailing clinical and epidemiological features in most populated countries such as China, India, and Indonesia, where tuberculosis is still a major health problem. OBJECTIVE: This retrospective study aimed to re-evaluate the CTB cases in China in the past 50 years to obtain a comprehensive insight into this multiplex entity. METHODS: Cases of diagnosed CTB with confirmed histology from four large medical centres in central China between 1957 and 2013 were collected and analysed, including demographic data, clinical manifestations and pathological findings. RESULTS: Of the 1194 cases enrolled, there were 666 (55.78%) and 528 cases (44.22%) of true CTB and tuberculids, respectively. Erythema induratum of Bazin (EIB) was the most common CTB (35.8%), followed by lupus vulgaris (LV, 32.7%), tuberculosis verrucosa cutis (18.9%), papulonecrotic tuberculid (8.0%), scrofuloderma (2.8%), tuberculosis cutis ulcerosa (1.3%), penile tuberculids (0.4%), and lichen scrofulosorum (0.1%). EIB was the predominant tuberculid (80.87%), while LV the predominant true CTB (58.7%). The number of diagnosed CTB showed a decreasing trend in the 1960s and 1970s, then increased again, and peaked in the 1990s. CONCLUSIONS: Cutaneous tuberculosis is still a common problem in China. Chronologic changes in CTB cases reported in China over the past 50 years may reflect the prevalence transition of overall tuberculosis. CTB has diverse clinical presentations, and each subtype is characterized by specific gender predilection, duration, age, clinic and pathological findings.
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