title: Endocrinologically active retroperitoneal ganglioneuroma with positive iodine-131-metaiodobenzylguanidine scintigraphy.
abstract: BACKGROUND
  A case of retroperitoneal ganglioneuroma incidentally found by ultrasonography in a 56-year old woman is presented.
  
  
  RESULTS
  Computed tomography revealed a solid round tumor 6 cm in diameter on the upper pole of the right kidney. Iodine-131-metaiodobenzylguanidine weakly accumulated in the tumor 24 and 48 h after the injection. Her serum catecholamines were within normal limits apart from slightly elevated norepinephrine at one of the two examinations. During the operation her serum epinephrine and dopamine levels were elevated to about 50 and 800 times higher than pre-operative values, respectively.
  
  
  CONCLUSIONS
  This case is a rare ganglioneuroma in an adult patient that is endocrinologically active.
authors.affiliation: Department of Urology, East Tokyo Metropolitan Hospital, Japan. a_tosaka@dl.dion.ne.jp
authors.forename: A
authors.initials: A
authors.lastname: Tosaka
authors.forename: M
authors.initials: M
authors.lastname: Ando
authors.forename: C
authors.initials: C
authors.lastname: Arisawa
authors.forename: T
authors.initials: T
authors.lastname: Okano
mesh_terms: D019797:3-Iodobenzylguanidine; D002395:Catecholamines / Q000097:blood*; D005260:Female; D005729:Ganglioneuroma / Q000175:diagnosis / Q000000981:diagnostic imaging* / Q000378:metabolism; D006801:Humans; D008875:Middle Aged; D011877:Radionuclide Imaging; D019275:Radiopharmaceuticals; D012186:Retroperitoneal Neoplasms / Q000175:diagnosis / Q000000981:diagnostic imaging* / Q000378:metabolism
chemical_list: D002395:Catecholamines; D019275:Radiopharmaceuticals; D019797:3-Iodobenzylguanidine