title: Extraadrenal paragangliomas of the body: imaging features.
abstract: OBJECTIVE
  This article illustrates the anatomic distribution of the healthy paraganglion system and the imaging and pathologic features of various extraadrenal paragangliomas occurring in the head and neck, chest, and abdomen.
  
  
  CONCLUSIONS
  Although paragangliomas can occur in a variety of anatomic locations, the majority are seen in relatively predictable regions of the body. Extraadrenal paragangliomas have nearly identical imaging features, including a homogeneous or heterogeneous hyperenhancing soft-tissue mass at CT, multiple areas of signal void interspersed with hyperintense foci (salt-and-pepper appearance) within tumor mass at MRI, and an intense tumor blush with enlarged feeding arteries at angiography.
authors.affiliation: Department of Radiology, Korea University Anam Hospital, College of Medicine Korea University; #126-1, 5-Ka, Anam-Dong, Sungbuk-Ku, Seoul 136-705, Korea.
authors.forename: Ki Yeol
authors.initials: KY
authors.lastname: Lee
authors.forename: Yu-Whan
authors.initials: YW
authors.lastname: Oh
authors.forename: Hyung Jun
authors.initials: HJ
authors.lastname: Noh
authors.forename: Yu Jin
authors.initials: YJ
authors.lastname: Lee
authors.forename: Hwan-Seok
authors.initials: HS
authors.lastname: Yong
authors.forename: Eun-Young
authors.initials: EY
authors.lastname: Kang
authors.forename: Kyeong Ah
authors.initials: KA
authors.lastname: Kim
authors.forename: Nam Joon
authors.initials: NJ
authors.lastname: Lee
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D006258:Head and Neck Neoplasms / Q000175:diagnosis; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D010236:Paraganglioma, Extra-Adrenal / Q000175:diagnosis*; D014057:Tomography, X-Ray Computed