Extraadrenal paragangliomas of the body: imaging features.
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.
Lee
Ki Yeol
KY
Department of Radiology, Korea University Anam Hospital, College of Medicine Korea University; #126-1, 5-Ka, Anam-Dong, Sungbuk-Ku, Seoul 136-705, Korea.
Oh
Yu-Whan
YW
Noh
Hyung Jun
HJ
Lee
Yu Jin
YJ
Yong
Hwan-Seok
HS
Kang
Eun-Young
EY
Kim
Kyeong Ah
KA
Lee
Nam Joon
NJ
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