Epidural mass related to calvarial aneurysmal bone cyst: computed tomographic and magnetic resonance demonstration.
The computed tomographic and magnetic resonance appearance of a calvarial aneurysmal bone cyst is described. Both forms of imaging demonstrate an epidural mass in the right occiput. The fluid-fluid levels in the mass on the T2-weighted images are characteristic of, though not specific for, aneurysmal bone cyst.
Lau
K Y
KY
Department of Radiology, University of Massachusetts Medical Center, Worcester 01655, USA.
Ragland
R L
RL
Weaver
J P
JP
Smith
T W
TW
Knorr
J R
JR
Weyreuther
M
M
D000293:Adolescent; D017824:Bone Cysts, Aneurysmal / Q000175:diagnosis* / Q000000981:diagnostic imaging*; D003937:Diagnosis, Differential; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D009777:Occipital Bone / Q000000981:diagnostic imaging / Q000473:pathology; D010014:Osteolysis / Q000175:diagnosis / Q000000981:diagnostic imaging; D012886:Skull / Q000000981:diagnostic imaging* / Q000473:pathology*; D014057:Tomography, X-Ray Computed