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  • Title: Bone Marrow Involvement in Metastatic Pediatric Ewing Sarcoma.
    Author: Khan SJ, Ishaq I, Saeed H, Fayyaz MB, Baqari SAS, Wali RM.
    Journal: J Coll Physicians Surg Pak; 2017 Aug; 27(8):502-504. PubMed ID: 28903844.
    Abstract:
    OBJECTIVE: To evaluate the frequency of bone marrow involvement with metastatic lung and bone sites in newly-diagnosed pediatric patients with Ewing sarcoma (ES). STUDY DESIGN: An observational study. PLACE AND DURATION OF STUDY: Shaukat Khanum Memorial Cancer Hospital, Lahore, Pakistan, from January 2010 to October 2015. METHODOLOGY: Newly-diagnosed pediatric-age patients with ES were inducted. Ten patients were excluded because bone marrow aspiration/biopsy (BMAB) was not done. Patients'medical records were reviewed for data collection of age, diagnosis, tumor volume, bone marrow diagnosis, metastatic work-up and outcomes. RESULTS: Atotal of 139 patients with median age of 12 years were identified. The median volume of tumors was 529 ml. Eleven patients had bone marrow (BM) disease involvement. Five (45.5%) had bone metastatic disease and 1 (9%) had both pulmonary and bone metastases. Four patients (31.1%) with positive BM had primary limb disease. CONCLUSION: Ewing sarcoma patients with bone metastatic disease have a higher frequency of BM involvement. However, BM can be involved without metastatic disease. BMAB should still be considered at staging for newly diagnosed pediatric patients with localized ES.
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