Doughnut sign (disambiguation)
Last revised by Daniel J Bell ◉ on 16 Dec 2021
Citation, DOI, disclosures and article data
Citation:
Hacking C, Bell D, El-Feky M, Doughnut sign (disambiguation). Reference article, Radiopaedia.org (Accessed on 26 Sep 2023) https://doi.org/10.53347/rID-66938
Permalink:
rID:
66938
Article created:
Disclosures:
At the time the article was created Craig Hacking had no recorded disclosures.
View Craig Hacking's current disclosuresLast revised:
16 Dec 2021, Daniel J Bell ◉
Disclosures:
At the time the article was last revised Daniel J Bell had no recorded disclosures.
View Daniel J Bell's current disclosuresRevisions:
9 times, by 3 contributors - see full revision history and disclosures
Systems:
Sections:
Synonyms:
- Donut sign (disambiguation)
- Donut signs (disambiguation)
- Doughnut signs (disambiguation)
The doughnut sign can refer to various imaging appearances:
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corkscrew sign (disambiguation)
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- dinner fork deformity
- dripping candle wax sign
- finger in glove sign
- fishhook ureters
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- ground glass opacity
- hockey stick sign (disambiguation)
- horseshoe (disambiguation)
- hourglass sign
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- light bulb sign (disambiguation)
- Lincoln log vertebra
- Mercedes-Benz sign (disambiguation)
- misty mesentery sign
- mosaic appearance (disambiguation)
- napkin ring sign
- open book fracture
- pearl necklace sign
- pencil in a cup
- picture frame vertebral body
- polka-dot sign
- rachitic rosary
- ribbon rib deformity
- ring shadow
- rugger jersey spine
- sack of marbles sign
- sail sign (disambiguation)
- scalpel sign
- spilled teacup sign
- stepladder sign (disambiguation)
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string of pearls sign (disambiguation)
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weapon and munition inspired signs
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- pistol grip deformity
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target sign (disambiguation)
- double target sign (hepatic abscess)
- eccentric target sign (cerebral toxoplasmosis)
- reverse target sign (cirrhotic nodules)
- target sign (cholangiocarcinoma)
- target sign (choledocholithiasis)
- target sign (hepatic metastases)
- target sign (intussusception)
- target sign (neurofibromas)
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- Viking helmet sign
- white pyramid sign
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vegetable and plant inspired
- aubergine sign
- bamboo spine
- blade of grass sign
- celery stalk appearance (disambiguation)
- coconut left atrium
- coffee bean sign
- cotton wool appearance
- drooping lily sign
- ginkgo leaf sign (disambiguation)
- holly leaf sign
- iris sign
- ivy sign
- miliary opacities
- mistletoe sign
- onion signs (disambiguation)
- pine cone bladder
-
popcorn calcification (disambiguation)
- popcorn calcification (breast)
- popcorn calcification (chondroid lesions)
- popcorn calcification (fibrous dysplasia)
- popcorn calcification (osteogenesis imperfecta)
- popcorn calcification (pulmonary hamartomas)
- popcorn calcification (uterine fibroid)
- potato nodes
- rice signs (disambiguation)
- salt and pepper sign (disambiguation)
- tombstone iliac wings
- tree-in-bud
- tulip sign
- water lily sign
-
fruit inspired
- apple core sign (disambiguation)
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- banana and egg sign
- banana fracture
- banana sign
- berry aneurysm
- bowl of grapes sign
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bunch of grapes sign (disambiguation)
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- bunch of grapes sign (bronchiectasis)
- bunch of grapes sign (IPMN)
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- bunch of grapes sign (intraosseous hemangiomas)
- bunch of grapes sign (multicystic dysplastic kidney)
- cashew nut sign
- lemon sign
- pear-shaped bladder
- strawberry gallbladder
- strawberry skull
- watermelon skin sign
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animal and animal produce inspired
- human
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- anteater nose sign
- antler sign
- batwing opacities
- bear paw sign
- beaver tail liver
- Brahma bull sign
- buffalo chest
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- bunny waveform sign
- claw sign
- dog ear sign
- dog leg sign
- dromedary hump
- ears of the lynx sign
- eye of tiger sign
- feline esophagus
- giraffe pattern
- hidebound sign
- ivory phalanx
- ivory vertebra sign
- joint mouse
- leaping dolphin sign
- leopard skin sign
- moose head appearance
- panda sign
- piglet sign
- pleural mouse
- raccoon eyes sign
- rat bite erosions
- rat-tail sign
- Scottie dog sign
- Snoopy sign
- stag's antler sign
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- tiger stripe sign
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zebra sign (disambiguation)
- zebra sign: (cerebellar hemorrhage)
- zebra spleen: arterial phase (spleen)
- zebra stripe sign (osteogenesis imperfecta)
- amphibians
- birds
- bird beak sign (disambiguation)
- bird's nest sign (lung)
- crow feet sign
- egg on a string sign
- eggshell calcification (breast)
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- gooseneck sign (endocardial cushion defect)
- gull wing appearance
- hummingbird sign
- owl eyes sign
- pooping duck sign
- sitting duck appearance
- swallowtail sign
- swan neck deformity
- winking owl sign
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- reptiles
- arthropods
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- fictional creatures
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food inspired
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- chocolate cyst
- cottage loaf sign
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- head cheese sign (lungs)
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- hot cross bun sign (pons)
- ice cream cone sign (middle ear ossicles)
- ice cream cone sign (vestibular schwannoma)
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- linguine sign (breast implants)
- macaroni sign
- omental cake
- Oreo cookie (heart)
- pancake organ (disambiguation)
- Polo mint sign
- salad oil sign (breast implants)
- sandwich sign (disambiguation)
- sandwich vertebra
- sausage digit
- spaghetti sign
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alphabet inspired
- A line (US artifact)
- C sign (MSK)
- delta sign (disambiguation)
- E sign
- H-shaped vertebra
- H sign
- J-shaped sella
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- O sign (gastric banding)
- P sign (epiglottis)
- S sign of Golden
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- U-figure (pelvis)
- U sign (brain)
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- Y sign (epidural lipomatosis)
- Z deformity
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Christmas inspired
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- holly leaf sign in calcified pleural plaques
- ivy sign in leptomeningeal enhancement
- nutcracker esophagus in esophageal dysmotility
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- snowcap sign in avascular necrosis
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