Signs

� Bird's Beak deformity of lower oesophagus - Achalsia cardia (Barium Swallow)
� Rat tail tapering of lower oesophagus - Carcinoma oesophagus (Barium Swallow)
� Cork screw oesophagus-- Diffuse oesophageal spasm (Barium Swallow)
� Commonest radiological appearance of gastric carcinoma (in barium meal follow through) is - filling defect in antrum / body of stomach
� Trifoliate duodenum - Chronic duodenal ulcer with scarring (Barium Meal)
� Hour Glass stomach - Peptic ulcer
� Cup&Spill / Cascade stomach - Volvulus of stomach
� Constriction of transverse duodenum - superior mesenteric artery syndrome
� Bull's eye lesion (in barium meal) - Leiomyosarcoma
� Single-bubble appearance - pyloric stenosis
� Double-bubble sign--Duodenal atresia, duodenal stenosis, annular pancreas
� Triple-bubble sign - Jejunal atresia
� Coffee bean sign--Strangula tion of incompletely obstructed loop of small intestine
� String of Beads - Small bowel obstruction 

� Coiled spring appearance - Intussusception
� Pincer-shaped ending in barium enema-- Intussusception
� Bird of Prey sign - Sigmoid volvulus
� Moulage sign (flocculation of barium, with mucosal thickening) -- malabsorption syndrome
� String sign of Cantor--Crohn's disease
� Pipe-stem appearance (Loss of Haustrations)- Ulcerative Colitis (Barium Enema)
� Saw-tooth appearance and / or diverticula - Diverticular disease / Diverticulosis (Barium Enema)
� Scalloping of edge of sigmoid colon on barium enema - Ulcerative colitis
� Napkin ring sign - Annular carcinoma of colon
� Porcelain gall bladder - Carcinoma of gall bladder
� Pad sign - Carcinoma pancreas (Barium Meal) ERCP
� Scrambled Egg appearance - Carcinoma of pancreas
� Chain of Lakes appearance - Chronic pancreatitis
� Double duct sign - Carcinoma of Pancreas
� Meniscus sign -- Choledocholithiasis