An unusual sonographic appearance: the pyramidal gallstone.
Wall
D T
DT
Department of Radiology, St. Paul's Hospital, Vancouver, British Columbia, Canada.
Cooperberg
P L
PL
Mathieson
J R
JR
D000368:Aged; D002765:Cholecystography; D002769:Cholelithiasis / Q000000981:diagnostic imaging*; D005704:Gallbladder / Q000000981:diagnostic imaging*; D006801:Humans; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography