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Radiologic Signs
One of the largest illustrated collections on the web


 

Abdominal Cocoon Sign

Absent bow-tie sign

Accordion sign

Acorn Cyst-Breast

Air bronchogram

Air Crescent Sign

Angel Wing Appearnce

Anteater Nose Sign

Antral Nipple Sign

 

Apple core

Top

Aortic nipple

 
 

Bat-wing Appearance

Bamboo spine

Banana sign

Bear paw sign

Berry aneurysm

Beveled edge sign

Black pleural line

Blade of Grass sign

Bird of prey sign

Bite sign

Bone-within-a-bone

Boomerang sign

Boot-shaped heart

Boutonniere deformity

Bowler hat sign

Bowtie appearance

Boxcar ventricles

Box-shaped heart

Breast in a breast

Brim sign

Bucket handle tear

Bulging fissure sign

Top

Butterfly vertebra

 
 

C sign

Cannonball Metastases

Carman Meniscus Sign

Celery stalking

Cervicothoracic sign

Cluster of grapes sign

Cobblestone appearance-GI

Cobblestone pattern-uterus

Cobra head sign

Cockade image

Codfish Vertebrae

Codman's triangle

Coffee-bean sign

Coin Lesion

Colon cut-off sign

Collar button ulcer

Comb sign

Comet sign

Comet tail sign

Coned Epiphyses

Continuous diaphragm sign

Copula sign

Corduroy sign

Corkscrew esophagus

Corkscrew sign

Cortical ring sign

Cottage loaf sign

Cotton wool appearance

Crazy paving

Crescent sign-hip

Crowded carpal sign

Top

CT angiogram sign

 
 

Dagger sign

Deep lateral femoral notch

Deep sulcus sign

Dense hilum sign

Dense MCA sign

Double bronchial wall sign

Double Bubble sign

Double Density sign

Double Duct sign

 

Double PCL sign

Double Track sign

Doughnut sign

Draping Aorta sign

Dripping Candle Wax Sign

Dromedary hump

Drooping lily sign

Top

Drooping shoulder sign

 

 

Egg-on-a-string sign

Eggshell Calcification-Breast

Eggshell calcification-lung

Elephant on a flagpole

Empty sella

Erlenmeyer flask deformity

Top

Eye-of-the-tiger sign

 
 

Faceless kidney

Falciform ligament sign

Fallen fragment sign

Fat pad sign

Feline esophagus

Figure 3 sign-cardiac

Fishhook Ureter-AKA hockey stick

Flat waist sign

Pear-shaped Breast

Floating teeth

Football sign

Top

Fragment in notch sign

 
 

Ghost vertebrae

Gloved finger sign

Goblet sign

Golden's S sign

Golf-ball-on-a-tee sign

Gooseneck sign

Top

Gullwing appearance

 
 

Haglund's deformity

Half moon sign

Hamburger bun sign

Hampton's hump

Hampton¢s Line

Hair-on-end

Hatchet head

Head cheese sign

Hide-bound appearance

Hill-Sach's deformity

Hilum convergence sign

Hilum overlay sign

Holly Leaf sign

Honda sign-Nucs

Honeycombing

Hot-cross bun sign

Hot Nose sign-Nucs

Hurricane sign-Nucs

Top

H-shaped vertebrae

 
 

Incomplete fissure sign

Incomplete rim sign

Inside-out sign-liver

Insular ribbon sign

Ivory phalanx sign

Top

Ivory vertebra

 
 

Jackstone calculus

J-shaped sella

Top

Juxtaphrenic peak sign

 

 

Keyhole sign-Breast

Keyhole sign-GU

Kidney bean sign

Top

Knuckle sign

 
   
   
   
   
   
   
   
   
   
 

Laminated periosteal reaction

Lateral capsular sign

Lateral Femoral Notch Sign

Lead-pipe Colon

Lead Pipe Fracture

Lemon Sign

Leontiasis Ossea

Licked candy stick appearance

Light bulb sign

Linguine sign

Top

Luftsichel sign

 
 

MacEwan sign

Maiden waist deformity

Mercedes Benz sign

Mickey Mouse ears-bone scan

Mickey Mouse pelvis

Misty mesentery sign

Molar tooth sign

Top

Moulage sign

 
   

Naked facet sign

Napoleon hat sign

Nubbin Sign-Nucs

Top

Nutcracker fracture

 
 

Oil Droplet Appearance

Omental caking

Top

Onion-skin periosteal reaction

 
 

Pad sign

Pancake kidney

Pancake vertebra

Panda Sign

Pawnbroker's sign

Pear-shaped Bladder

Pedicle sign

Pencil-in Cup sign

Pencil Pointing

Pericardial Fat Pad sign

Phantom Calyx Sign

Picket Fence Appearance

Picture Framing

Pie-in-the-Sky sign

Piece-of-Pie sign

Pneumoarthrogram sign

Polka Dot sign

Popcorn Appearance

Popcorn Calcification-Breast

Pseudo-Rigler's sign

Puckered Panniculus Sign

Putty Kidney

Top

Pyloric Tit sign

 
 
 

Rachitic rosary

Rat bite sign

Rat tail sign

Reverse 3 sign-GI

Reverse hamburger bun sign

Reverse pulmonary edema

Reversed Halo Sign

Ribbon ribs

Rice grain calcification

Rigler's sign

Ring-around-artery sign

Ring sign-papillae

Rod-like Calcifications-Breast

Rolled-edge sign-chest

Top

Rugger jersey spine

 
 

Saber sheath trachea

Saber shin deformity

Salt and pepper skull

Sandwich vertebra

Sausage digit

Scalloped vertebra

Scimitar sign

Scottie dog

Segond Fracture

Sentinel Loop

Shaggy esophagus

Shepherd's Crook deformity

Shmoo sign

Signet ring sign

Silhouette Sign

Silver fork deformity

Sister Mary Joseph sign

Small bowel feces sign

Snow-capping

Snowstorm appearance

Snowstorm appearance-lung

Snowstorm Pattern-Breast

Snowman sign

Soap-bubbly Appearance

Soft tissue rim sign

Spaghetti sign

Spilled teacup sign

Spine sign

Spinnaker sail sign

Split pleura sign

Spoke wheel appearance

Spotted nephrogram

Stack-of-Coins Appearance

Steeple sign

Stepladder Appearance

Stepladder sign-Breast

Stocking Glove sign-Nucs

String-of-beads-IR

String-of-beads sign-GI

String-of-Pearls Sign-Nucs

String sign

Stripe sign-Nucs

Sunburst periosteal reaction

Swan neck deformity

Top

Swiss cheese appearance-cardiac

 
 

Talar beak

Target calcification

Target sign-bowel

Target sign-US

Threads and streaks sign

Three sign-Cardiac

Thumb sign

Thumbprinting

Thymic sail sign

Teacup Calcification-Breast

Teardrop sign

Terry Thomas Sign

Tree-in-bud sign

Tooth sign

Tram-tracking

Trolley track sign

Trough sign

Tubular artery sign

Tulip bulb aorta

Top

Tumbling bullet sign

 
 

Upside down stomach sign

 
 

Vacuum disk sign

Vacuum Joint

Top

Vanishing tumor

 
 

Water bottle heart

Water lily sign

Westermark's sign

Whirlpool sign

Whiskering

Wimberger's ring sign

Top

Wimberger's sign

 
 

Y Sign

Yin-yang sign

 
   
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Breast signs contributed by Crystal Chang, MD
Nuclear Medicine Signs contributed by PeachyMae Piana, MD