Preferred Label : Frostberg inverted-3 sign;
RADLEX synonyms : Frostberg sign; inverted three sign; Frostberg inverted-three sign; inverted 3 sign;
Definition : Medial wall of 2nd portion of duodenum retracted medially to resemble an inverted
3 on upper GI series; middle point is where pancreatic and bile ducts insert into
papilla. Suggests pancreatic carcinoma, acute pancreatitis, or postbulbar ulcer.;
Source : Eisenberg, Ronald L. Atlas of Signs in Radiology.;
Origin ID : RID35234;
Associated condition(s)
Medial wall of 2nd portion of duodenum retracted medially to resemble an inverted
3 on upper GI series; middle point is where pancreatic and bile ducts insert into
papilla. Suggests pancreatic carcinoma, acute pancreatitis, or postbulbar ulcer.
