{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,8,27]],"date-time":"2025-08-27T09:40:25Z","timestamp":1756287625070,"version":"3.44.0"},"reference-count":25,"publisher":"BMJ","issue":"3","content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["BMJ Case Rep"],"accepted":{"date-parts":[[2024,3,14]]},"published-print":{"date-parts":[[2024,3]]},"abstract":"<jats:p>Primary tropical pyomyositis, commonly caused by <jats:italic>Staphylococcus aureus<\/jats:italic>, is characterised by suppuration in skeletal muscles, which manifests as single or multiple abscesses. Another rare causative organism is <jats:italic>Mycobacterium tuberculosis<\/jats:italic> in endemic areas. Here, we report a case of primary tuberculous pyomyositis presenting as septic arthritis of the right knee and multiple site pyomyositis of the right thigh and chest wall. A tuberculous aetiology was overlooked at first, which resulted in a diagnostic delay. The patient was initially diagnosed, using ultrasonography, MRI and an absence of systemic symptoms of tuberculosis, with bacterial pyomyositis and treated with broad-spectrum antibiotics. However, further investigations performed on knee joint aspirate yielded negative cultures and a positive cartridge-based nucleic acid amplification test, which, along with a non-resolution of his symptoms, suggested a primary tuberculous pyomyositis. He was successfully managed with incision and drainage of the lesions and completion of anti-tubercular therapy.<\/jats:p>","DOI":"10.1136\/bcr-2023-258501","type":"journal-article","created":{"date-parts":[[2024,3,26]],"date-time":"2024-03-26T02:36:13Z","timestamp":1711420573000},"page":"e258501","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":0,"title":["Tuberculous pyomyositis presenting as septic arthritis and multiple site pyomyositis"],"prefix":"10.1136","volume":"17","author":[{"given":"Meghna","family":"Somaraj","sequence":"first","affiliation":[{"name":"Department of Medicine, Kasturba Medical College, Manipal, Karnataka, India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Geofia Shaina","family":"Crasta","sequence":"additional","affiliation":[{"name":"Department of Medicine, Kasturba Medical College, Manipal, Karnataka, India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Rama","family":"Bhat","sequence":"additional","affiliation":[{"name":"Department of Medicine, Kasturba Medical College, Manipal, Karnataka, India"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"239","published-online":{"date-parts":[[2024,3,25]]},"reference":[{"key":"2025082702144601000_17.3.e258501.1","doi-asserted-by":"crossref","first-page":"2277","DOI":"10.2106\/00004623-200212000-00024","article-title":"Primary pyomyositis","volume":"84","author":"Bickels","year":"2002","journal-title":"J Bone Joint Surg Am"},{"key":"2025082702144601000_17.3.e258501.2","doi-asserted-by":"publisher","DOI":"10.1136\/pgmj.2003.009274"},{"key":"2025082702144601000_17.3.e258501.3","doi-asserted-by":"crossref","unstructured":"Hossain A , Reis D , Soundararajan K , et al . 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