VZV - H Z opthalmicus

Question 1

71M

painful rash - right forehead

2 days ago = bruning pain on the right FH

vesicular rash - right FH & RIght nose

Risk of blindness of right eye due to which cranial nerve involvment ?

Answer 1

trigeminal

varicella zoster virus re-infection

herpes zoster opthalmicus

Question 2

reactivation of HZoster opthalmicus where ?

Answer 2

trigeminal

Question 3

why vesicular rash >

Answer 3

trigeminal nerve – CN V1 – opthalmic division – forehead+side of nose + periorbital area

also corneal reflex - innervation —- keratitis — loss of vision

Question 4

why eye loss in HZ opthalmicus ?

Answer 4

vesicular rash – slide and tip of the nose – Hutchinson sign – nasocilliary branch of CN V1 innervate both eye and side/tip of the nose

Question 5

dormant VZV vesicular rash type ?

Answer 5

generalized

Question 6

reactivation of VZV vesicular rash ?

Answer 6

unilateral zoster - shingles
linear vesicular rash