Simultaneous tumors: Acute myeloid leukemia infiltrating mediastinal ganglioneuroblastoma

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We report the case of a child presenting with concurrent thoracic ganglioneuroblastoma and acute myeloid leukemia. The peculiarity was the close relation between the two tumors with the latter infiltrating the former one. Histological and genomic studies indicate the different clonal origins of the malignancies in the patient, and we hypothesized that GNB and AML developed independently. Our observation suggests that in patients with more than one tumor, though discovered at different times, one neoplasm is not always secondary. Pediatr Blood Cancer 2011;56:298-300. © 2010 Wiley-Liss, Inc.

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