KEY FACTS Terminology Anterior sacral meningocele (ASM) Sacral meninges herniate anteriorly into pelvis through focal erosion or hypogenesis of sacral ± coccygeal vertebral segments 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
KEY FACTS Terminology Synonym: Terminal syringocele 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
KEY FACTS Terminology Caudal regression syndrome, sacral agenesis, lumbosacral hypogenesis 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
KEY FACTS Terminology Segmental spinal dysgenesis (SSD), caudal regression syndrome (CRS) 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
KEY FACTS Terminology Synonyms: Tethered cord syndrome, tight filum terminale syndrome 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
KEY FACTS Terminology Benign nonneoplastic spinal mass embryologically derived from epidermal (skin) elements 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
KEY FACTS Terminology Synonyms: Dermoid tumor, “dermoid” Benign spinal mass composed of cells embryologically comprising skin and its appendages 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
KEY FACTS Terminology Synonym: Sacral dimple 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
KEY FACTS Terminology Synonyms: Dermal sinus tract (DST) Midline/paramedian stratified squamous epithelial-lined sinus tract Extends inward from skin surface for variable distance 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
KEY FACTS 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
KEY FACTS Terminology Lipomyelomeningocele, lipomyelocele, spinal lipomatous malformation 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
KEY FACTS Terminology Posterior spinal defect lacking skin covering → neural tissue, CSF, and meninges exposed to air Synonyms: Meningomyelocele, open spinal dysraphism, spina bifida aperta, spina bifida cystica 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
KEY FACTS Terminology Chiari 3 malformation Synonyms: Chiari III, rhombencephalocele 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
KEY FACTS Terminology Synonyms: Chiari 2 malformation 2, Chiari II Complex hindbrain malformation Virtually 100% associated with neural tube closure defect, usually lumbar myelomeningocele 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
KEY FACTS Terminology Complex Chiari malformation (CCM), Chiari 1.5 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
KEY FACTS Terminology Synonyms: Chiari 1 malformation (CM1), Arnold-Chiari 1 malformation 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
KEY FACTS Terminology Synonyms: Hypoplastic C1, hypoplastic atlas 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
KEY FACTS Terminology Congenital small or absent odontoid process 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
KEY FACTS Terminology Synonym: Split C1 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
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 you are a member. Log in here