Abstract
A 16 years old girl presented with low back pain, fever and weakness in both lower limbs for 3 months. Plain radiograph shows lytic lesion in first sacral vertebra and multiple lung nodules. In suspicion of tuberculosis, antitubercular drugs were advised. But magnetic resonance imaging revealed right paraspinal soft tissue mass with multiple lesions in several vertebrae causing spinal canal compression alongwith lesions in iliac bones, sacrum, lung parenchyma and scalp tissue. Fine needle aspiration cytology and biopsy revealed Ewings sarcoma. Patient was referred to higher centre for chemotherapy/radiotherapy. Herein we report this rare case of extraosseous Ewings sarcoma with disseminated metastases masquerading as Potts spine. Bangladesh Journal of Medical Science Vol. 12 No. 03 July 13 Page 334-338 DOI: http://dx.doi.org/10.3329/bjms.v12i3.15447
Highlights
Ewing's sarcoma (ES) is a primary bone malignancy commonly involving long bones of the extremities and the pelvis
We report a rare case of paraspinal extraosseous Ewing's sarcoma with disseminated metastases in a 16 years old female masquerading as spinal tuberculosis (Pott’s spine)
Multiple patchy heterogeneously enhancing lesions seen in the D6, D7, D8, L3, L4 and L5 vertebral bodies with epidural soft tissue component causing spinal canal compression (Figure 2a and 2b)
Summary
Introduction: Ewing's sarcoma (ES) is a primary bone malignancy commonly involving long bones of the extremities and the pelvis. Primary malignant sarcomas of the spine are rare and accounts for only 3.5%–14.9% of all primary bone sarcomas and extraosseous Ewing’s sarcoma are even rarer[1]. In 30% cases ES is multicentric in origin and approximately 25% of patients will have metastatic disease at the time of diagnosis with 10% lung, 10% bones/bone marrow, 5% combinations or others[2, 3, 4].
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