CASE REPORT
A case of nodular-type muscular sarcoidosis: findings of imaging, histopathology, and polymerase chain reaction
Kenshi Sakayama1 , Yoshifumi Sugawara2, Taketsugu Fujibuchi1, Eiji Sada3, Teruki Kidani1, Joji Miyawaki1, Nozomu Tanji4 and Haruyasu Yamamoto1
| (1) |
Department of Orthopaedic Surgery, Ehime University School of Medicine, Shitsukawa, Toon 791-0295, Japan |
| (2) |
Department of Radiology, Ehime University School of Medicine, Toon, Japan |
| (3) |
Department of Medical Technology, Faculty of Health Science, Ehime Prefectural University of Health Science, Ehime, Japan |
| (4) |
Department of Urology, Ehime University School of Medicine, Toon, Japan |
Received: 09 July 2004 Accepted: 08 November 2004
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Abstract We report a case of nodular-type muscular sarcoidosis with no systemic symptoms. Thallium-201 scintigraphy showed intense uptake in the muscular lesion mimicking malignant soft tissue tumor. Magnetic resonance imaging (MRI) demonstrated characteristic signal patterns of peripheral high intensity with central low intensity ("three stripes" pattern). Microscopy revealed sarcoid granuloma with typical histopathological characteristics. Propionibacterium acnes was detected on polymerase chain reaction analysis of the excised tissue.
Key words Magnetic resonance imaging (MRI) - Muscular sarcoidosis - Polymerase chain reaction (PCR) - Propionibacterium acnes - Thallium-201 scintigraphy
