title: Retroperitoneal ganglioneuroblastoma. Report of a case diagnosed by fine needle aspiration cytology and electron microscopy.
abstract: Fine needle aspiration performed on a large retroperitoneal mass in a 12-year-old boy showed neuroblasts in different stages of maturation intermingled with ganglion cells, leading to a cytologic diagnosis of ganglioneuroblastoma. This diagnosis was supported by electron microscopic study of the aspirate, which showed features of neuroblastic differentiation, and by histologic study of the resected tumor.
authors.affiliation: Department of Pathology, University of Seville, Spain.
authors.forename: C
authors.initials: C
authors.lastname: Otal-Salaverri
authors.forename: R
authors.initials: R
authors.lastname: González-Cámpora
authors.forename: A
authors.initials: A
authors.lastname: Hevia-Vazquez
authors.forename: E
authors.initials: E
authors.lastname: Lerma-Puertas
authors.forename: H
authors.initials: H
authors.lastname: Galera-Davidson
mesh_terms: D001707:Biopsy, Needle; D002648:Child; D003581:Cytodiagnosis; D003937:Diagnosis, Differential; D005729:Ganglioneuroma / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology; D006801:Humans; D008297:Male; D008854:Microscopy, Electron; D012186:Retroperitoneal Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology; D014057:Tomography, X-Ray Computed