Butterfly vertebra
Butterfly vertebra is a type of vertebral anomaly that results from the failure of fusion of the lateral halves of the vertebral body because of persistent notochordal tissue between them.
Pathology
Associations
- an anterior spina bifida, with or without an anterior meningocele
- can be part of the Alagille syndrome
- Jarcho-Levin syndrome
Radiographic features
Plain radiograph
There is widening of the affected vertebral body. The bodies above and below the butterfly vertebra adapt to the altered intervertebral discs on either side by showing concavities along the adjacent endplates.
Some bone bridging may occur across the defect which usually happens in the thoracic or lumbar segments of the spine.
Related Radiopaedia articles
Anatomy: Spine
-
osteology
- vertebrae
- spinal canal
- cervical spine
- thoracic spine
- lumbar spine
- sacrum
- coccyx
-
anatomical variants
- vertebral body
- neural arch
- transitional vertebrae
- ossicles
- ossification centers
- intervertebral disc
- articulations
- ligaments
- musculature of the vertebral column
- muscles of the neck
- muscles of the back
-
suboccipital muscle group
- rectus capitis posterior major muscle
- rectus capitis posterior minor muscle
- obliquus capitis superior muscle
- obliquus capitis inferior muscle
- splenius capitis muscle
- splenius cervicis muscle
- erector spinae group
- transversospinalis group
- quadratus lumborum
-
suboccipital muscle group
- spinal meninges and spaces
-
spinal cord
- gross anatomy
-
white matter tracts (white matter)
- corticospinal tract
- anterolateral columns
- lateral columns
-
dorsal columns
- fasiculus gracilis (column of Goll)
- fasiculus cuneatus (column of Burdach)
- grey matter
- nerve root
- central canal
- functional anatomy
- spinal cord blood supply
- sympathetic chain
Inspired signs
-
inanimate object inspired
- astronomical inspired
- champagne glass pelvis
- Coca-Cola bottle sign
- coin lesion
- corduroy artifact
- corduroy sign
- dinner fork deformity
- fishhook ureters
- ghost triad (gallbladder)
- goblet sign
- hatchet sign
- hockey stick sign
- hourglass sign
- ivory vertebra sign
- leather bottle stomach
- Lincoln log vertebra
- napkin ring sign
- open book fracture
- pearl necklace sign
- polka-dot sign
- rachitic rosary
- rainshower 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
- Venetian blind sign
- water bottle sign
-
weapon and munition inspired signs
- bayonet deformity
- boomerang sign (disambiguation)
- bullet-shaped vertebra
- cannonball metastases
- dagger sign
- double barrel sign
- halberd pelvis
- 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 appearance
- Viking helmet sign
- white pyramid sign
- wine bottle sign
-
vegetable and plant inspired
- aubergine sign
- celery stalk appearance
- chocolate cyst
- coconut left atrium
- coffee bean sign
- cottage loaf sign
- cotton wool appearance
- doughnut sign (disambiguation)
- drooping lily sign
- ginkgo leaf sign (disambiguation)
- holly leaf sign
- ivy sign
- linguine sign
- macaroni sign
- miliary opacities
- onion skin periosteal reaction
- pine cone bladder
- popcorn calcification
- potato nodes
- 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
- mammals
- anteater nose sign
- antler sign
- bat wing opacities
- bear paw sign
- beaver tail liver
- buffalo chest
- bull's eye sign (disambiguation)
- bunny waveform sign
- claw sign
- dog ear sign
- dog leg sign
- ears of the lynx sign
- eye of tiger sign
- feline esophagus
- giraffe pattern
- hide-bound sign
- leaping dolphin sign
- leopard skin sign
- moose head appearance
- panda sign
- pleural mouse
- raccoon eyes sign
- rat bite erosions
- rat-tail sign
- Scottie dog sign
- stag's antler sign
- staghorn calculus
- tiger stripe sign
- winking owl sign
- zebra sign
- zebra stripe sign
- arthropods
- reptiles
- micro-organisms
- mythical creatures
- animal derived 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
- alphabet inspired signs
Anatomy: Spine
-
osteology
- vertebrae
- spinal canal
- cervical spine
- thoracic spine
- lumbar spine
- sacrum
- coccyx
-
anatomical variants
- vertebral body
- neural arch
- transitional vertebrae
- ossicles
- ossification centers
- intervertebral disc
- articulations
- ligaments
- musculature of the vertebral column
- muscles of the neck
- muscles of the back
-
suboccipital muscle group
- rectus capitis posterior major muscle
- rectus capitis posterior minor muscle
- obliquus capitis superior muscle
- obliquus capitis inferior muscle
- splenius capitis muscle
- splenius cervicis muscle
- erector spinae group
- transversospinalis group
- quadratus lumborum
-
suboccipital muscle group
- spinal meninges and spaces
-
spinal cord
- gross anatomy
-
white matter tracts (white matter)
- corticospinal tract
- anterolateral columns
- lateral columns
-
dorsal columns
- fasiculus gracilis (column of Goll)
- fasiculus cuneatus (column of Burdach)
- grey matter
- nerve root
- central canal
- functional anatomy
- spinal cord blood supply
- sympathetic chain
Spine
- spinal anatomy
- congenital abnormalities of the spine
- osseous
- theca
- cord
-
spinal dysraphism
- open spinal dysraphism
- closed spinal dysraphism
- caudal regression
- tethered cord
- diastematomyelia
- cyst of the medullary conus
-
spinal dysraphism
- spinal hematoma
- spinal infection / inflammation / degeneration
- osseous
- renal spondyloarthropathy
- spondylodiskitis (diskitis-osteomyelitis)
- degenerative disc disease
- epidural
- intrathecal-extramedullary
- intramedullary
- acute disseminated encephalomyelitis (ADEM)
- Charcot-Marie-Tooth disease
- HIV vacuolar myelopathy
- HTLV-1 associated myelopathy (tropical spastic paraparesis)
- multiple sclerosis
- neuromyelitis optica (NMO) - (Devic's disease)
- transverse myelitis
-
spinocerebellar ataxias
- SCA3 (Machado-Joseph disease)
- subacute combined degeneration of the cord
- subacute necrotizing myelopathy
- tabes dorsalis
- osseous
- spinal ischemia
- spinal trauma
- spinal tumors and cysts
- osseous
- epidural
- intrathecal-extramedullary
- intramedullary
- spinal vascular malformations
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