Sign → Disease
Rat tail appearance → Carcinoma esophagus
Bird beak appearance → Achalasia
Beak sign/double track/ tram track → Hypertrophic pyloric stenosis
Medusa head colonies on CT → Roundworm
Pincer/claw/coiled spring/target/meniscus sign → Intussusception
Coffee bean sign → Sigmoid volvulus
Lead pipe appearance → Ulcerative colitis
String of kantor/bull’s eye → Chron’s disease
Thumb printing sign → Ischemic colitis
Saw tooth appeance on barium enema → Diverticulosis
Apple core sign → Carcinoma colon
Cork screw appearance → Diffuse esophageal spasm
String sign → Hypertrophic pyloric stenosis
