WB MRI can substitute for bone scintigraphy in detecting skeletal metastases of paediatric malignant tumours, and it is useful in evaluating initial tumour staging and early treatment responses. However, it still has only a complementary role in detecting extraskeletal metastases.
WB MRI is a useful initial and follow-up diagnostic method to assess the extent of LCH because WB MRI not only identifies more skeletal lesions of the disease than do plain radiography and bone scintigraphy, but also detects extraskeletal lesions of the disease.
CTX, at a maximum total dose of 6,000 mg/m2, administered sequentially with melphalan and followed by ABMR was tolerable in children with recurrent brain tumors who had not been heavily pretreated. Responses were seen in patients with medulloblastoma and germinomas. Further trials in children with chemosensitive tumors, with minimal residual disease, are planned.
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