Yokoyama Koji, Mamada Mitsukazu
Department of Pediatrics, Japanese Red Cross Wakayama Medical Center, Wakayama, JPN.
Cureus. 2024 Nov 10;16(11):e73399. doi: 10.7759/cureus.73399. eCollection 2024 Nov.
() is a Gram-negative pathogen associated with gastrointestinal infections, such as enterocolitis. While complications like reactive arthritis can occur, progression to myositis is extremely rare. This report describes a five-year-old boy who developed myositis following a infection. The patient presented with a five-day history of abdominal pain, fever, and leg pain that progressed to muscle weakness, which affected his ability to walk. Laboratory results showed elevated inflammatory markers, and stool cultures confirmed infection. Magnetic resonance imaging (MRI) examination revealed muscle inflammation consistent with myositis. The patient improved rapidly with conservative treatment (rest and acetaminophen) and did not require antibiotics. Thirteen years later, he remained asymptomatic. This case highlights the rare complication of myositis following infection. Potential mechanisms include postinfectious immune-mediated myositis. Clinicians should be aware of this possibility, and conservative treatment may suffice for recovery.
（）是一种与胃肠道感染相关的革兰氏阴性病原体，如小肠结肠炎。虽然可能会出现反应性关节炎等并发症，但进展为肌炎极为罕见。本报告描述了一名五岁男孩在感染后发生肌炎的病例。该患者有五天的腹痛、发热和腿痛病史，随后发展为肌肉无力，影响了他的行走能力。实验室结果显示炎症标志物升高，粪便培养证实感染。磁共振成像（MRI）检查显示与肌炎一致的肌肉炎症。患者通过保守治疗（休息和对乙酰氨基酚）迅速好转，无需使用抗生素。十三年后，他仍无症状。本病例突出了感染后肌炎这种罕见的并发症。潜在机制包括感染后免疫介导的肌炎。临床医生应意识到这种可能性，保守治疗可能足以实现康复。
