Omega epiglottis
Last revised by Daniel J Bell on 7 Jan 2021
Citation, DOI, disclosures and article data
Citation:
Gaillard F, Bell D, Baba Y, et al. Omega epiglottis. Reference article, Radiopaedia.org (Accessed on 05 Oct 2024) https://doi.org/10.53347/rID-6281
Permalink:
rID:
6281
Article created:
Disclosures:
At the time the article was created Frank Gaillard had no recorded disclosures.
View Frank Gaillard's current disclosures
Last revised:
7 Jan 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 disclosures
Revisions:
9 times, by
7 contributors -
see full revision history and disclosures
Systems:
Sections:
Tags:
Synonyms:
- Omega-shaped epiglottis
The omega epiglottis is a variant configuration of the normal epiglottis in which the lateral folds are curled inwards. The configuration is not necessarily pathologic but has been associated with higher rates of laryngomalacia 3.
Differential diagnosis
When seen on a lateral neck radiograph, an omega epiglottis can appear prominent, mimicking the epiglottic thickening seen in epiglottitis 1,4, and all causes of epiglottic enlargement in general. Thus, this anatomic variant represents a potential pitfall in evaluating neck radiographs.
References
- 1.Swischuk LE. Imaging of the newborn, infant, and young child. Lippincott Williams & Wilkins. (2004) ISBN:0781734584. Read it at Google Books - Find it at Amazon
- 2. Grover C. Images in clinical medicine. "Thumb sign" of epiglottitis. N. Engl. J. Med. 2011;365 (5): 447. doi:10.1056/NEJMicm1009990 - Pubmed citation
- 3. Petkar N, Georgalas C, Bhattacharyya A. High-rising epiglottis in children: should it cause concern?. (2007) Journal of the American Board of Family Medicine : JABFM. 20 (5): 495-6. doi:10.3122/jabfm.2007.05.060212 - Pubmed
- 4. Ramesh Iyer, Teresa Chapman. Pediatric Imaging. (2015) ISBN: 9781496329561
Incoming Links
Related articles: Anatomy: Head and neck
- skeleton of the head and neck
-
cranial vault
- scalp (mnemonic)
- fontanelle
-
sutures
- calvarial
- facial
- frontozygomatic suture
- frontomaxillary suture
- frontolacrimal suture
- frontonasal suture
- temporozygomatic suture
- zygomaticomaxillary suture
- parietotemporal suture (parietomastoid suture)
- occipitotemporal suture (occipitomastoid suture)
- sphenofrontal suture
- sphenozygomatic suture
- spheno-occipital suture (not a true suture)
- lacrimomaxillary suture
- nasomaxillary suture
- internasal suture
- basal/internal
- skull landmarks
- frontal bone
- temporal bone
- parietal bone
- occipital bone
- skull base (foramina)
-
facial bones
- midline single bones
- paired bilateral bones
- cervical spine
- hyoid bone
- laryngeal cartilages
-
cranial vault
- muscles of the head and neck
- muscles of the tongue (mnemonic)
- muscles of mastication
-
facial muscles
- epicranius muscle
- circumorbital and palpebral muscles
- nasal muscles
-
buccolabial muscles
- elevators, retractors and evertors of the upper lip
- levator labii superioris alaeque nasalis muscle
- levator labii superioris muscle
- zygomaticus major muscle
- zygomaticus minor muscle
- levator anguli oris muscle
- malaris muscle
- risorius muscle
- depressors, retractors and evertors of the lower lip
- depressor labii inferioris muscle
- depressor anguli oris muscle
- mentalis muscle
- compound sphincter
-
orbicularis oris muscle
- incisivus labii superioris muscle
- incisivus labii inferioris muscle
-
orbicularis oris muscle
- muscle of mastication
- modiolus
- elevators, retractors and evertors of the upper lip
- muscles of the middle ear
- orbital muscles
- muscles of the soft palate
- pharyngeal muscles
- suprahyoid muscles
- infrahyoid muscles
- intrinsic muscles of the larynx
- muscles of the neck
- platysma muscle
- longus colli muscle
- longus capitis muscle
- scalenus anterior muscle
- scalenus medius muscle
- scalenus posterior muscle
- scalenus pleuralis muscle
- sternocleidomastoid muscle
-
suboccipital muscles
- rectus capitis posterior major muscle
- rectus capitis posterior minor muscle
- obliquus capitis superior muscle
- obliquus capitis inferior muscle
- accessory muscles of the neck
- deep cervical fascia
-
deep spaces of the neck
- anterior cervical space
- buccal space
- carotid space
- danger space
- deep cervical fascia
- infratemporal fossa
- masticator space
- parapharyngeal space
- stylomandibular tunnel
- parotid space
- pharyngeal (superficial) mucosal space
- perivertebral space
- posterior cervical space
- pterygopalatine fossa
- retropharyngeal space
- suprasternal space (of Burns)
- visceral space
- surgical triangles of the neck
- orbit
- ear
- paranasal sinuses
- upper respiratory tract
- viscera of the neck
- blood supply of the head and neck
-
arterial supply
-
common carotid artery
- carotid body
- carotid bifurcation
- subclavian artery
- variants
-
common carotid artery
- venous drainage
-
arterial supply
- innervation of the head and neck
-
cranial nerves
- olfactory nerve (CN I)
- optic nerve (CN II)
- oculomotor nerve (CN III)
- trochlear nerve (CN IV)
-
trigeminal nerve (CN V) (mnemonic)
- trigeminal ganglion
- ophthalmic division
- maxillary division
- mandibular division
- abducens nerve (CN VI)
- facial nerve (CN VII)
-
vestibulocochlear nerve (CN VIII)
- vestibular ganglion (Scarpa's ganglion)
- glossopharyngeal nerve (CN IX)
- vagus nerve (CN X)
- (spinal) accessory nerve (CN XI)
- hypoglossal nerve (CN XII)
- parasympathetic ganglia of the head and neck
- cervical sympathetic ganglia
- greater occipital nerve
- third occipital nerve
-
cervical plexus
- muscular branches
- longus capitis
- longus colli
- scalenes
- geniohyoid
- thyrohyoid
-
ansa cervicalis
- omohyoid (superior and inferior bellies separately)
- sternothyroid
- sternohyoid
- phrenic nerve
- contribution to the accessory nerve (CN XI)
- cutaneous branches
- muscular branches
- brachial plexus
- pharyngeal plexus
-
cranial nerves
- lymphatic drainage of the head and neck
- embryological development of the head and neck
Related articles: Inspired signs
-
inanimate object inspired
- accordion sign
- astronomical inspired
- ball of wool sign
- ball on tee sign (renal papillary necrosis)
- boot-shaped heart
- bowler hat sign
- bow tie sign
- box-shaped heart
- bucket handle appearance (disambiguation)
- chain of lakes sign
- champagne glass pelvis
- cobblestone appearance
- Coca-Cola bottle sign
- cockade sign (disambiguation)
- coin lesion
- collar button ulcer
- comb sign
- corduroy artifact
- corduroy sign
-
corkscrew sign (disambiguation)
- corkscrew sign (diffuse esophageal spasm)
- corkscrew sign (inner ear)
- corkscrew sign (midgut volvulus)
- crazy paving sign
- cupola sign
- curtain sign (lung ultrasound)
- dinner fork deformity
- dripping candle wax sign
- finger in glove sign
- fishhook ureters
- flame-shaped breast (gynecomastia)
- football sign (pneumoperitoneum)
- frozen pelvis
- ghost triad (gallbladder)
- ghost vertebra
- goblet sign
- ground glass opacity
- hockey stick sign (disambiguation)
- horseshoe (disambiguation)
- hourglass sign
- hurricane sign (cardiac SPECT)
- jail bar sign
- keyhole sign (disambiguation)
- leather bottle stomach
- 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)
-
string of pearls sign (disambiguation)
- string of pearls sign (abdominal radiograph of small bowel)
- string of pearls sign (polycystic ovarian syndrome)
- string of pearls sign (fibromuscular dysplasia)
- string of pearls sign (watershed infarction)
- Tam o' Shanter sign
- telephone receiver deformity
- thimble bladder
- tombstone iliac wings
- Venetian blind sign
- Venus necklace sign
- water bottle sign
-
weapon and munition inspired signs
- arrowhead sign
- bayonet artifact
- bayonet deformity
- boomerang sign (disambiguation)
- bullet-shaped vertebra
- cannonball metastases
- Cupid bow contour
- dagger sign
- double barrel sign
- halberd pelvis
- hatchet 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 (cholangiocarcinoma)
- target sign (choledocholithiasis)
- target sign (hepatic metastases)
- target sign (intussusception)
- target sign (neurofibromas)
- target sign (pyloric stenosis)
- target sign (tuberculosis)
- trident appearance
- Viking helmet sign
- white pyramid sign
- windswept knees
- wine bottle sign
-
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)
- apple-peel intestinal atresia
- banana and egg sign
- banana fracture
- banana sign
- berry aneurysm
- bowl of grapes sign
-
bunch of grapes sign (disambiguation)
- bunch of grapes sign (hydatidiform mole)
- bunch of grapes sign (bronchiectasis)
- bunch of grapes sign (IPMN)
- bunch of grapes sign (botryoid rhabdomyosarcoma)
- bunch of grapes sign (intracranial tuberculoma)
- 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
-
animal and animal produce inspired
- human
- mammals
- anteater nose sign
- antler sign
- batwing opacities
- bear paw sign
- beaver tail liver
- Brahma bull sign
- buffalo chest
- bull's eye sign (disambiguation)
- 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
- staghorn calculus
- tiger stripe sign
-
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)
- eggshell calcification (lymph nodes)
- 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
- fish and marine life
- reptiles
- arthropods
- micro-organisms
- fictional creatures
-
food inspired
- Cheerio sign (disambiguation)
- chocolate cyst
- cottage loaf sign
- double Oreo cookie (glenoid labrum)
- doughnut sign (disambiguation)
- hamburger sign (spine)
- head cheese sign (lungs)
- honeycombing (lungs)
- hot cross bun sign (pons)
- ice cream cone sign (middle ear ossicles)
- ice cream cone sign (vestibular schwannoma)
- licked candy stick appearance (bones)
- 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
- Swiss cheese sign
-
alphabet inspired
- A line (US artifact)
- C sign (MSK)
- delta sign (disambiguation)
- E sign
- H-shaped vertebra
- H sign
- J-shaped sella
- J sign (shoulder)
- L sign (brain)
- lambda sign (disambiguation)
- M sign
- omega epiglottis
- O sign (gastric banding)
- P sign (epiglottis)
- S sign of Golden
- tau sign
- T sign (disambiguation)
- U fibers
- U-figure (pelvis)
- U sign (brain)
- V sign (disambiguation)
- W hernia
- X-marks-the-spot sign
- Y sign (epidural lipomatosis)
- Z deformity
-
Christmas inspired
- Christmas tree bladder in neurogenic bladder
- holly leaf sign in calcified pleural plaques
- ivy sign in leptomeningeal enhancement
- nutcracker esophagus in esophageal dysmotility
- shepherd's crook deformity of the femur in fibrous dysplasia
- snowcap sign in avascular necrosis
- snowman sign (disambiguation)
- snowstorm appearance in complete hydatidiform mole and testicular microlithiasis
- miscellaneous
Unable to process the form. Check for errors and try again.