Mycobacterial infections are rare in horses, donkeys and mules. Although there are a few reports in horses, mycobacterial disease is poorly documented in the donkey. Mycobacterial infection of equine species typically affects the alimentary tract, causing granulomatous enterocolitis resulting in diarrhoea and chronic weight loss, while lymph nodes and liver may also be affected. We now document recurrent oesophageal obstruction, secondary to cranial mediastinal lymphadenitis caused by Mycobacterium avium complex (MAC). To the best of our knowledge, this is the first report of MAC infection in a donkey in the UK.

中文翻译：

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鸟分枝杆菌复合体引起纵隔淋巴结炎致驴食管梗阻

分枝杆菌感染在马、驴和骡中很少见。尽管有一些关于马的报告，但关于驴的分枝杆菌疾病的记录却很少。马科分枝杆菌感染通常会影响消化道，引起肉芽肿性小肠结肠炎，导致腹泻和慢性体重减轻，同时淋巴结和肝脏也可能受到影响。我们现在记录复发性食管梗阻，继发于由鸟分枝杆菌复合群 (MAC)引起的颅纵隔淋巴结炎。据我们所知，这是英国首例驴感染 MAC 的报告。