brainstem lesions

Question 1

wallenberg sydnrome affects this area of the brainstem

Answer 1

lateral medulla

Question 2

what syndrome is this:
vertigo, nystagmus, N/V (most common sx)
contralateral loss of pain + temp of body
ipsilateral loss of pain + temp of face
hoarseness, dysphagia, loss of gag reflux
ipsilateral Horner syndrome
ipsilateral cerebellar deficit: ataxia, past pointing

Answer 2

Wallenberg syndrome (lateral medulla, PICA stroke)
vertigo, nystagmus, N/V (most common sx): CN 8 nuclei
contralateral loss of pain + temp of body: spinothalamic tract
ipsilateral loss of pain + temp of face: sensory CN 5 nuclei
hoarseness, dysphagia, loss of gag reflux: nucleus ambiguus, CN 9 + 10
ipsilateral Horner syndrome: descending sympathetic tract follows spinothalamic tract
ipsilateral cerebellar deficit: ataxia, past pointing: inferior cerebellar peduncle = spinocerebellar tract