Target sign (intussusception)
The target sign of intestinal intussusception, also known as the doughnut sign or bull's eye sign.
The appearance is generated by concentric alternating echogenic and hypoechogenic bands. The echogenic bands are formed by mucosa and muscularis whereas the submucosa is responsible fo the hypoechoic bands.
See also
Related Radiopaedia articles
Inspired signs
-
inanimate object inspired
- champagne glass pelvis
- Coca-Cola bottle sign
- coin lesion
- corduroy sign
- dinner fork deformity
- fishhook ureters
- goblet sign
- hockey stick sign (Creutzfeldt-Jakob disease)
- hockey stick sign (thyroid hemiagenesis)
- leather bottle stomach
- Lincoln log vertebra
- napkin ring sign
- open book fracture
- polka-dot sign
- rugger-jersey spine
- sack of marbles sign
- scalpel sign
- spilled teacup sign
- string of pearls sign
- tam o' shanter sign
- telephone receiver deformity
- tombstone iliac wings
- water bottle sign
-
weapon and munition inspired signs
- bayonet deformity
- bullet-shaped vertebra
- cannonball metastases
- dagger sign
- double barrel sign
- panzerherz
- pistol grip deformity
- saber-sheath trachea
- scimitar syndrome
-
target sign (disambiguation)
- double target sign (hepatic abscess)
- eccentric target sign (cerebral toxoplasmosis)
- reverse target sign (cirrhotic nodules)
- target sign (choledocholithiasis)
- target sign (hepatic metastases)
- target sign (intussusception)
- target sign (neurofibromas)
- target sign (pyloric stenosis)
- target sign (tuberculosis)
- trident
- white pyramid sign
- wine bottle sign
-
vegetable and plant inspired
- aubergine sign
- celery stalk anterior cruciate ligament
- celery stalk metaphysis
- chocolate cyst
- coconut left atrium
- coffee bean sign
- cottage loaf sign
- cotton wool appearance
- doughnut sign (bone)
- doughnut sign (bowel)
- drooping lily sign
- ivy sign
- linguine sign
- macaroni sign
- miliary opacities
- omental cake
- onion skin periosteal reaction
- pine cone bladder
- popcorn calcification
- rice bodies
- rice grain calcification
- salt and pepper skull
- tree-in-bud
- waterlily sign
- fruit inspired
-
animal and animal produce inspired
- human
- fish and seafood
- birds
- domesticated and wild animals
- antler sign
- anteater nose sign
- bat wing opacities
- bear paw sign
- buffalo chest
- bull's eye sign (disambiguation)
- claw sign
- eye of tiger sign
- feline esophagus
- hide-bound sign
- panda sign (midbrain)
- panda sign (sarcoidosis)
- pleural mouse
- raccoon eyes sign
- Scotty dog sign
- stag's antler sign
- staghorn calculus
- rat bite erosions
- rat-tail sign
- winking owl sign
- insects
- reptiles
- mythical creatures
- food inspired
- double oreo cookie (glenoid labrum)
- hamburger sign (spine)
- head cheese sign (lungs)
- honeycombing (lungs)
- licked candy stick appearance (bones)
- linguine sign (breast implants)
- omental cake
- Oreo cookie (heart)
- pancake adrenal
- pancake brain
- pancake vertebra
- Polo Mint sign
- salad oil sign (breast implants)
- sandwich sign (CNS)
- sandwich sign (mesentery)
- sandwich vertebra
- sausage digit
- spaghetti sign
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