Childhood brain tumors Flashcards
GFAP + with rosenthal fibers, and a combination of cystic and solid
pilocytic astrocytoma
usually well circumscribed
Most common malignant brain tumor of childhood
medulloblastoma
Which childhood tumor is a form of primitive neuroectodermal tumor
Medulloblastoma
Can send drop metastases to spinal cord
medulloblastoma
Homer wright rosettes, small blue cells
Medulloblastoma
Can compress 4th vent causing noncoommunicating hydrocephalus –> headaches and papilledema
Medulloblastoma
Perivascular psuedorosettes and rod shaped blepharoplasts near the nucleus ((basal ciliary bodies
Ependymomoma (poor prognosis)
most commonly in 4th ventricle
Most common supratentorial childhood tumor
Craniopharyngioma
(motor oil filled- calcification is common
What may be confsued with craniopharyngioma
pituitary adenoma (both cause bitemporal hemianopia)
What is found inside the motor oil fluid of a craniopharyngioma
cholesterol crystals
similar appearance to germ cell tumors can cause oobstructive hydrocephalus and precocusous puberty in males
Pinealoma
(compresses cerebral aqueduct)
(b-hcg production)
How can Parinaud affect vision
Compress tectum –> Verticval gaze palsy
Parinaud syndrome
