Gas-containing gallstones. The sonographic "double echo sign".
Mitchell
D G
DG
Department of Radiology, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania 19107.
Needleman
L
L
Frauenhoffer
S
S
Lutz
M
M
Wechsler
R
R
D002769:Cholelithiasis / Q000175:diagnosis*; D005740:Gases; D006801:Humans; D014463:Ultrasonography
D005740:Gases