Resumen

CHUQUISANA-MOSTACERO, Celso L et al. Myositis ossificans on Petit triangle. Case report. Cir. plást. iberolatinoam. [online]. 2018, vol.44, n.2, pp.217-222.  Epub 08-Feb-2021. ISSN 1989-2055.  https://dx.doi.org/10.4321/s0376-78922018000200016.

Myositis ossificans is a heterotopic self-limited ossification that affects every age. It usually appears in limb musculature, commonly in exposed areas due to its intimate relationship with mechanical trauma.

It is considered a benign disease and, if clinical and radiological identification results obvious, suggested treatment is clinical follow-up. But if there is a diagnostic doubt, a biopsy must be performed in order to define surgical treatment.

We present a case report of a patient with an 18 month-evolution painful tumour in the lumbar area, at the level of Petit triangle. The initial biopsy of the soft tissue mass suggested fibromyxoid ossificans tumour, but after postoperative analysis, diagnosis of myositis ossificans was stated.

Surgical treatment consisted of a wide local resection and immediate reconstruction with a biological mesh, achieving a non-tension closure in order to avoid spontaneous and secondary hernias, which are described specifically in the triangle of Petit triangle. These hernias are usually post-incisional.

Palabras clave : Myositis ossificans; Mixofibroid ossificans tumour; Lumbar area; Biological mesh.

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