Category Neurological Imaging

Posterior Arch Rachischisis

KEY FACTS Terminology Synonym: Incomplete C1 posterior ring Definition: Posterior C1 arch is incompletely formed with midline or paramidline osseous defect(s) You’re Reading a Preview Become a Clinical Tree membership for Full access and enjoy Unlimited articles Become membership If…

Ossiculum Terminale

KEY FACTS Terminology Synonym: Ossiculum terminale persistens Persistence of unfused odontoid tip ossification center into adulthood You’re Reading a Preview Become a Clinical Tree membership for Full access and enjoy Unlimited articles Become membership If you are a member. Log…

Ponticulus Posticus

KEY FACTS Terminology Latin: “Little posterior bridge” Synonyms: Arcuate foramen, sagittale foramen, canalis vertebralis, retroarticular canal, retroarticular/retrocondylar vertebral artery ring, upper retroarticular foramen, and atlantal posterior foramen You’re Reading a Preview Become a Clinical Tree membership for Full access and…

C1 Assimilation

KEY FACTS Terminology Synonyms: Atlantooccipital assimilation, atlantal assimilation, “occipitalization” Nonresegmentation of proatlas sclerotome → failure of C1 to correctly segment from occipital bone You’re Reading a Preview Become a Clinical Tree membership for Full access and enjoy Unlimited articles Become…

C2-C3 Fusion

KEY FACTS Terminology Congenital C2-C3 vertebral segmentation failure You’re Reading a Preview Become a Clinical Tree membership for Full access and enjoy Unlimited articles Become membership If you are a member. Log in here