Primary paravertebral low-grade fibromyxoid sarcoma

Abstract

Low-grade fibromyxoid sarcoma is a distinctive variant of fibrosarcoma. Despite its benign histological appearance, it is a tumor with malignant potential. Usually, it is occur in the proximal lower extremities and trunk. However, it is very rare in paravertebral region. The diagnosis is based on the histology and specific immunohistochemistry results. The treatment of choice is total excision followed by radiotherapy to prevent the possibility of recurrence. We excised the tumor to near total and a wide fixation has been done. Frozen section biopsy was misleading and reported a schwannoma.

Keywords

• fibromyxoid sarcoma
• fibrosarcoma
• immunohistochemistry
• low-grade
• paravertebral region
• schwannoma