The authors report the case of a 22-year-old female suffering from thigh pain for 5 months. The first diagnosis considered was circumscribed myositis ossificans but the duration of symptoms and the radiological aspect mimicking some malignant features led to consider parosteal sarcoma as a possible diagnosis. Surgical resection was therefore requested and histological analysis confirmed the diagnosis of circumscribed myositis ossificans. This case emphasizes the difficulty in differentiating circumscribed myositis ossificans from a slowly growing tumor as both can be associated with increasing pain and a malignant radiological aspect. A surgical approach is therefore frequently necessary for definitive diagnosis and treatment.
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Article Synopsis
- Myositis ossificans is a condition where bone forms in skeletal muscle and is identified in three subtypes: fibrodysplasia ossificans progressiva, nontraumatic myositis ossificans, and traumatic myositis ossificans.
- A case study is presented involving a 10-year-old girl with Thevenards syndrome who experienced a traumatic hip dislocation that led to a rare complication of circumstantial myositis ossificans.
- Radiological imaging, including X-rays and CT scans, showed mature bone at the lesion's periphery, leading to a diagnosis, and treatment for the dislocation and complication was managed nonoperatively.
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