DOI: https://doi.org/10.36347/sjmcr.2026.v14i02.004

Pages: 194-197

Myositis ossificans is a benign, self-limiting lesion characterized by heterotopic bone formation within soft tissues, often following trauma but occasionally arising spontaneously. Its clinical and radiological features frequently mimic malignant tumors, making accurate diagnosis challenging. Understanding its evolution from early inflammatory stages to mature ossified lesions is essential to prevent mismanagement. The purpose of this case is to highlight a rare non-traumatic presentation that closely simulated a soft tissue sarcoma. Major findings include the absence of trauma, misleading MRI features, and confirmation of the characteristic zonal pattern on histopathology. This case underlines the importance of correlating imaging with tissue diagnosis to avoid overtreatment. In conclusion, early recognition of this benign entity remains crucial to prevent unnecessary aggressive management.