16 Ventricles And Sinuses

CNS Ventricles

  • interventricular foramen aka foramen of monro

  • midbrain: cerebral aquaduct

  • pons: 4th

  • medulla: 4th

CSF

Choroid Plexus Cysts

  • trisomy 18

Hydrocephalus

Communicating Hydrocephalus

Noncommunicating Hydrocephalus

Aqueductal Stenosis

Chiari II and Myelomeningocele

Dandy Walker

Pseudotumor Cerebri

  • like HTN of ventricles

Normal pressure hydrocephalus

  • Corona radiata: compressed

  • different from pseudotumor: nl opening pressure

Hydrocephalus Exercise Vacuo

Sinus

Dural

Cavernous

  • nerves innervate eye

  • cavernous sinus syndrome: all the structures impacted

  • artery inside venous structure: instant fistula. Compression

  • Swollen eyes: edema, bulging

AV Malformation

  • similar symptoms to other mass

  • left: noncontrast

  • right: contrast

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