https://www.selleckchem.com/ In the OS cohort, 8/16 patients had osseous metastases; 100% of these patients were detected on FDG PET/CT and 75% on BS. Thirty-one bony lesions were seen on imaging in OS patients; 100% of these were identified on FDG PET/CT but only 29% on BS. In the EWS cohort, 6/15 patients had osseous metastases; 100% of these patients were detected on FDG PET/CT and 50% on BS. Eighteen bony lesions were seen on imaging in EWS patients; 94% of these were identified on FDG PET/CT, but only 28% on BS. For patients in our institution with OS or EWS, osseous metastases were more likely detected using FDG PET/CT. For patients in our institution with OS or EWS, osseous metastases were more likely detected using FDG PET/CT.Overlapping myelodysplastic/myeloproliferative neoplasms (MDS/MPN) are clonal hematopoietic disorders with features of myelodysplasia and myeloproliferation. The only well-characterized MDS/MPN in children is juvenile myelomonocytic leukemia, an aggressive disorder of infants and toddlers. The biochemical hallmark of this disease is hyperactivation of the Ras/MAPK signaling pathway caused by mutations in Ras pathway genes in more than 90% of patients. Translocations involving receptor tyrosine kinases have been identified in rare cases. Here, we report a 2-year-old patient who presented with MDS/MPN driven by a cytogenetically cryptic NUP98-NSD1 fusion, a translocation thought to exclusively occur in patients with acute myeloid leukemia. The aim of this study was to evaluate levels of vitamin D, bone mineral density (BMD), and x-ray features at diagnosis and after 6 months of chemotherapy in patients with acute lymphoblastic leukemia (ALL). Vitamin D levels were also correlated with BMD and x-ray features. 25-Hydroxy vitamin D [25(OH)D] levels, BMD, and x-ray features were assessed in 50 newly diagnosed patients of ALL in the age group of 2 to 14 years. A total of 30 age-matched and sex-matched children were recruited as controls. Vitam