Extragonadal germ cell tumours are rare; to the best of our knowledge, a location in the soft tissue of the right scapular region has never been previously reported in the literature. We report a case of a 9-years-old girl who presented with swelling over the right scapular region, treated by a combination of surgery and cisplatin-based chemotherapy. Immunohistochemistry and serum tumour markers concluded it to be an extragonadal mixed germ cell tumour. Our patient had a complete response up to 2 years of follow-up. This case is being reported here due to a very rare site of presentation with a diagnostic dilemma. A multidisciplinary, combining systemic chemotherapy and surgery is the most appropriate treatment strategy for extragonadal germ cell tumours, to ensure both local and systemic control.
Ewing sarcoma is the second most common malignant bone tumour in children. It rarely originates from extraskeletal soft tissue sites such as the upper thigh, buttocks, upper arm and shoulder. Primary extraosseous Ewing sarcoma located in the pelvic region is rare. We report a 17-year-female who had gradual onset of progressive lower abdominal mass and pain. A computed tomography scan revealed well defined lobulated heterogeneously enhancing lesion noted in the pelvic region measuring approximately 12.9 x 9.8 x 9.3 cm. Incisional biopsy showed a small round blue cell tumour which was strongly positive for Cluster of Differentiation 99, vimentin, Friend Leukaemia Integration 1 with 40% Ki-67. Following treatment with chemotherapy, surgery and radiotherapy, there was complete resolution of the tumour. Although extraosseous Ewing sarcoma is rare, it can occur virtually in any soft tissue site. Therefore, clinicians need to distinguish it from soft tissue sarcoma because rapid progression, early diagnosis and timely treatment are crucial for a favourable prognosis.
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