title: False positive MIBG scan.
abstract: The fortuitous discovery of a left posterior cervico-mediastinal mass during hospitalization for hemolytic anemia in an 18 month old baby is reported. Metaiodobenzylguanidine (MIBG) uptake suggested a sympathetic tissue origin of the mass despite negative catecholamines excretion, but histopathologic examination revealed a juvenile capillary angioma within a normal sympathic ganglion.
authors.affiliation: Paediatric Department, Centre Léon Bérard, Lyon, France. frappaz@oncoral.lyon.fnclcc.fr
authors.forename: D
authors.initials: D
authors.lastname: Frappaz
authors.forename: F
authors.initials: F
authors.lastname: Giammarile
authors.forename: P
authors.initials: P
authors.lastname: Thiesse
authors.forename: D
authors.initials: D
authors.lastname: Ranchere-Vince
authors.forename: D
authors.initials: D
authors.lastname: Louis
authors.forename: L
authors.initials: L
authors.lastname: Guibaud
authors.forename: G
authors.initials: G
authors.lastname: Souillet
authors.forename: V
authors.initials: V
authors.lastname: Combaret
authors.forename: M
authors.initials: M
authors.lastname: Schell
authors.forename: C
authors.initials: C
authors.lastname: Bergeron
mesh_terms: D019797:3-Iodobenzylguanidine; D001013:Aorta, Thoracic / Q000000981:diagnostic imaging; D001707:Biopsy, Needle; D003287:Contrast Media; D003937:Diagnosis, Differential; D005189:False Positive Reactions; D018305:Ganglioneuroblastoma / Q000175:diagnosis* / Q000000981:diagnostic imaging; D018324:Hemangioma, Capillary / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology; D006801:Humans; D007223:Infant; D007457:Iodine Radioisotopes; D007462:Iodobenzenes; D008297:Male; D008479:Mediastinal Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology; D009447:Neuroblastoma / Q000175:diagnosis* / Q000000981:diagnostic imaging; D011877:Radionuclide Imaging; D013125:Spinal Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology; D014057:Tomography, X-Ray Computed
chemical_list: D003287:Contrast Media; D007457:Iodine Radioisotopes; D007462:Iodobenzenes; D019797:3-Iodobenzylguanidine