ear

Question 1

most common benign tumor of middle ear

Answer 1

glomus tumor

Question 2

glomus tumor is also known as

Answer 2

paraganglioma

chemodectoma as it resembles carotid body

Question 3

types of glomus tumor

Answer 3

1 glomus jugulare arise from dome of jugular bulb
2 glomus tympanicum
arise from promontory along course of 9th and 10 th nerve

Question 4

most common site for glomus tumor is

Answer 4

hypotympanum

Question 5

most common benign tumor of ext auditory canal

Answer 5

exostosis

Question 6

is glomus tumor is vascular

Answer 6

yes it is highly vascular main blood supply is ascending pharyngeal artery

Question 7

most common cranial nerve involved by glomus tumor are ??

Answer 7

facial nerve followed by last 4 cranial nerve

Question 8

is glomus tumor capsulated ?

Answer 8

no it is noncapsulated ,locally invasive

Question 9

cell 9f origin of

glomus tumor is

Answer 9

chief cells which contain ach,catecholamines and serotonin

Question 10

zellballen is ??

Answer 10

classic finding of clusted of chief cells k/a zellballen highly vascular may bleed substantially during surgical excision

Question 11

glomus tumor can be multicentric T/F

Answer 11

T ie it can originate from more thn 1 site

Question 12

IOC for glomus tumor is

Answer 12

CT scan

Question 13

earliest symptoms of glomus tumor are

Answer 13

deafness

tinnitus

Question 14

kind of tinnitus in glomus tumor

Answer 14

pulsatile and of swishing character

synchronous with pulse and can be stopped by carotid pressure

Question 15

otoscopy finding of glomus tumor

Answer 15

red reflex

rising sun appearence tympanic membrane appears bluish and bulging

Question 16

wht is pulsation/brown sign

Answer 16

it is seen in glomus tumor

tumor pulsates big when ear canal pressure is raised with siegels speculum

Question 17

aquino sign is ???

Answer 17

blanching of mass with manual compression of ipsilateral carotid artery

Question 18

Phelps sign is seen in

Answer 18

glomus jugulare ie absence of normal crest bw carotid canal and jugular fossa on lateral tomography

Question 19

pulsatile tinnitus is seen in

Answer 19

glomus tumor

arterial》 av malformation of temporal bone ,carotid subclavian atherosclerosis venous 》 high jugular bulb,benign ICT

Question 20

symptoms of glomus tumor when it presents as polyp

Answer 20

profuse bleeding from ear

audible bruit heard by stethoscope since it secrete catecholamines and produce headache ,sweating ,flushing