4.4 - Congenital Mal Flashcards
defects of fusion of the neural tube
dysraphism
absence of posterior vertebral elements + intact skin
spina bifida occulta
absence of posterior vertebral elements + protrusion of meninges
myelomeningocele
meningocele means?
herniation of meninges without nerve tissue
early fusion of the sutures
craniosynostosis
boat shaped head/scaphocephaly
sagittal synostosis
outward deviation of orbit + ipsilateral flat forehead
unilateral coronal synostosis
genetic disorder char.by craniosynostosis
crouzons syndrome
chiari type with high cervical or occipital encephalocele (cerebellum and brainstem)
Chiari 3
chiari type with hydrocephalus is very common
chiari 2
hydrocephalus d/t obstruction outside the ventricular system
communicating
most common cause of communicating hydrocephalus
TB meningitis
most commonly occurs as secondary to an infection in the paranasal sinus or middle ear
brain abscess
early lesion of brain abscess
cerebritis
late lesion of brain abscess
encapsulated lesion
