"Reverse-figure 3" sign in duodenal adenocarcinoma arising in a villous adenoma: radiographic demonstration.
The radiographic "reverse-figure 3" sign is a well-known indicator of pancreatic head enlargement. We present a case in which this characteristic sign was produced by an invasive adenocarcinoma of the duodenum that arose in a periampullary villous adenoma.
Goodman
P
P
Department of Radiology, University of Texas Medical Branch, Galveston 77550.
Anaya
L N
LN
Gourley
W K
WK
D002288:Adenocarcinoma, Mucinous / Q000000981:diagnostic imaging* / Q000473:pathology; D000236:Adenoma / Q000000981:diagnostic imaging* / Q000473:pathology; D000328:Adult; D004379:Duodenal Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology; D006801:Humans; D008297:Male; D009378:Neoplasms, Multiple Primary / Q000000981:diagnostic imaging* / Q000473:pathology; D014057:Tomography, X-Ray Computed