Term
| Otoscopy shows a lamelar accumulation of debris and the medial portion of the EC is expanded. Likely cause: |
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Definition
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Term
| A patient has only bullous blisters within the TM. Likely cause: |
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Definition
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Term
The eustachian tube is surrounded by bone near its distal portion near the nasopharynx.
T/F |
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Definition
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Term
Serous OM can be usually be treated successfully with decongestants and antibiotics
T/F |
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Definition
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Term
Your pt is a farmer, who has a growth on the superior helix. This is probably benign and does not require referral
T/F |
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Definition
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Term
Cerumen inhibits the growth of fungi and is bacteriostatic
T/F |
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Definition
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Term
| The resonance of the EC is primarily attributable to: |
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Definition
| its length as a tube that is open at one end and closed at the other |
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Term
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Definition
1) bony growths that arise from the tympanic ring surrounding the EC
2) Often result from cold water exposure
3) may require surgery if they threaten to close off EC or trap cerumen |
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Term
| A 78 yo diabetic pt presents with pain and tenderness of the EC. The most alarming cause of this is: |
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Definition
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Term
| An 18 yo presents with blue sclera and a hx of multiple bone fractures. The most likely cause is: |
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Definition
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Term
| You can usually recognize otomycosis because: |
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Definition
1) often results in itching and discharge
2) usually appears as spores or stalks in the EC upon otoscopic exam |
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Term
| The pH of a normal ear canal is: |
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Definition
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Term
| When looking at a normal right TM: |
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Definition
1) the pars flaccida can be seen
2) the outline of the incus and stapes can probably be seen |
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Term
| Cholesteatoma of the middle ear: |
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Definition
1) Usually requires surgery
2) usually consists of squamous epithelium
3) is able to erode bone |
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Term
| Compare the manubrium of the malleus with the long process of the incus in terms of length |
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Definition
| The manubrium is longer, contributing to the impedance matching of the middle ear |
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Term
| An adult presents with a 45 dB CHL and tymp with a large volume. A week later, he now has a 60 dB CHL. You would expect the tympanogram to show what pattern? |
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Definition
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Term
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Definition
| A larger than normal pinna |
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Term
In unilateral atresia with a normal contra ear, surgical repair of the atresia is warranted to provide symmetric hearing
T/F |
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Definition
False
The surgery would probably not result in symmetric hearing and the risks are too great for limited benefit |
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Term
A lineman is found unconscious on the ground after a fall. Later, he is confused, has vertigo, bloody discharge from the left EC, left HL. Weber lateralizes to the left. He probably has a transverse TB fracture
T/F |
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Definition
False
Probably longitudinal |
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Term
Hematoma of the pinna occurs when blood accumulates within the cartilage of the pinna
T/F |
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Definition
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Term
| The source for hillock 1 is the: |
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Definition
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Term
| The pinna assumes its more adult configuration in the gestational week |
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Definition
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Term
The initially is formed by the widening/deepening
of the first branchial groove |
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Definition
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Term
| The vestibular and cochlear pouches start to form the: |
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Definition
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Term
| Neural crest cells from the rhombencephalon give rise to the: |
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Definition
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Term
The source tissue of the stapes crura is not the same as the source of the footplate
T/F |
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Definition
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Term
The stapedius muscle forms from the 2nd branchial arch while the tensor tympani muscle forms from the 1st brachial arch
T/F |
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Definition
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Term
If there is a congenital defect of the pinna, it is more likely that there will be a congenital defect of the cochlea than of the external EC
T/F |
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Definition
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Term
A women who is 36 weeks pregnant ingests a teratogen that is known to affect hair cell development. In spite of this, we can expect that there will probably not be a SNHL
T/F |
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Definition
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Term
Efferent VII nerve fibers originate from the otic placodes and are unipolar
T/F |
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Definition
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Term
The fusion of the tympanic ring and the otic capsule is complete at birth
T/F |
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Definition
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Term
The otic capsule is initially endochondrial bone and does not go through a cartilaginous stage
T/F |
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Definition
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Term
For a full term infant, the arteries that supply the VIIth nerve are adult-like in configuration at birth
T/F |
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Definition
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Term
| The inner ear (labyrinth) takes its origin from: |
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Definition
| ectodermal thickening near the neural tube |
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Term
| The ossicles ossify in the following order: |
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Definition
| incus, then malleus, then stapes |
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Term
| The membraneous labyrinth reaches adult configuration in the: |
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Definition
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Term
| The otic capsule goes through pneumatization in the following way: |
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Definition
| in the mastoid portion and is incomplete at birth |
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Term
| The tubotympanic recess of the 1st branchial pouch results in the: |
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Definition
| lining of the middle ear space |
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Term
The lamina propria is part of the:
external ear, middle ear, cochlea, utricle, or aortic arch system?
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Definition
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Term
| The chronological order of development of the primordial labyrinth from ectoderm is: |
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Definition
| otic placode, otic pit, otocyst |
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Term
| A 55 yo woman experiences dizziness that lasts less than a minute when she rolls over in bed to the right and when she has her hair washed at the salon. You should suspect: |
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Definition
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Term
| A 10 yo with a hx of meningitis at 4 years of age with full recovery of hearing not presents with a high freq. SNHL of the left ear with episodes of vertigo. Perilymph fistula is a less likely diagnosis than Meniere's disease T/F |
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Definition
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Term
The sequelae of viral meningitis are far more severe than bacterial meningitis
T/F |
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Definition
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Term
| A 52 yo woman presents with a 25 day hx of facial weakness that has been diagnosed as Bell's palsy. Electroneurography shows a 75% weakness on the affected side. You can expect that she will essentially experience a recovery of facial function T/F |
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Definition
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Term
Barotrauma occurs in underwater diving during ascent when the pressure in the middle ear becomes more positive
T/F |
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Definition
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Term
A 57 yo woman has a 1.5 cm vestibular schwannoma that initially started in the internal auditory canal and now has spilled over into the cerebellar pontine angle. more likely than not, she will have experienced definitive episodes of vertigo
T/F |
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Definition
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Term
Bell's palsy is an idiopathic unilateral facial weakness that is due to complications of chronic suppurative otitis media
T/F |
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Definition
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Term
NFII will typically result is bilaterally symmetric changes in immittance results, but the ABR will not change
T/F |
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Definition
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Term
A mother was infected with CMV two weeks after delivering her baby, who passed the NBHS. WIth this situation, the child is not at greater risk for contracting HL due to CMV infection
T/F |
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Definition
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Term
| A pt with diabetes has chronic kidney disease requiring dialysis. The pt has a severe ulcer on his foot with gram negative infection, requiring treatment with aminoglycosides, gentamicin and kanamycin. Although the infection was brought under control, the prescribing physician did not monitor serum levels of either agent. What are the 2 likely outcomes? |
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Definition
| Dandy's syndrome and significant SNHL |
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Term
| A pt. presents with episodes of roaring tinnitus, low freq. HL and vertigo. The attacks require bed rest and last for 30 minutes to several hours. There are no triggers for the attacks. This is consistent with: |
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Definition
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Term
| A pt has bilateral otosclerosis. AC thresholds are significantly poorer in one ear than the other, but the conductive portion is the same in both ears. The pt has decided on a stapedectomy. Which ear should have surgery? |
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Definition
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Term
| In her 7th week of pregnancy, a woman mistakenly took a teratogren. Audiologic testing revealed the child has a mild SNHL, right and a moderate SNHL, left. The most likely cause of the HL is: |
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Definition
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Term
| An 8 yo boy has developed renal disease and SNHL. You should suspect: |
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Definition
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Term
| A 12 yo boy presents with a white patch on his back, heterochromia and a mild to moderate SNHL. You should suspect: |
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Definition
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Term
| A 52 yo man has a hx of acute OM followed by long term serous effusion. Recently, he has had facial weakness and double vision. The complains of poor ability to talk on the phone, although he has a near normal audiogram. The MRI shows a mass in the petrous apex. These symptoms are most characteristic of: |
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Definition
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Term
| Autoimmune inner ear disease differs from Meniere's because: |
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Definition
| Usually AIED involves both ears, while MD usually involves one ear |
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