CASE REPORT
Large benign rheumatoid nodules of the trunk in an elderly patient: radiologic appearance mimicking a soft-tissue sarcoma
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Toshihisa Osanai1, Takashi Tsuchiya1, Tadashi Hasegawa2 and Mitsunori Yamakawa3
| (1) |
Department of Orthopaedic Surgery, Yamagata University School of Medicine, 2-2-2 Iida-Nishi, Yamagata 990-9585, Japan |
| (2) |
Department of Surgical Pathology, Sapporo Medical University School of Medicine, Sapporo, Japan |
| (3) |
First Department of Pathology, Yamagata University School of Medicine, Yamagata, Japan |
Received: 06 March 2006 Accepted: 15 June 2006
Abstract An 80-year-old woman without any evidence of rheumatoid arthritis presented with two large (maximum diameter: 6?cm and 7?cm), rapidly growing, rubbery nodules on the trunk. Although the clinical and radiological appearance suggested malignancy, the nodules were pathologically identical to rheumatoid nodules in rheumatoid arthritis, and the nodules regressed spontaneously. The final diagnosis was benign rheumatoid nodules. Recognition of this rare clinical entity is important to avoid unnecessary examination and treatment.
Key words Benign rheumatoid nodule - Elderly patient - Magnetic resonance imaging (MRI) - Soft-tissue sarcoma - Trunk |
