ENT Flashcards

1
Q

What are the otolith organs?

A

Utricle and saccule and semi-circular canals

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2
Q

What do the otoconia contain?

A

Ca carbonate crystals

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3
Q

What stimulates the vetibulo-occular reflex?

A

Semi-circular canals

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4
Q

What is contained within the cochlea?

A
  • Scala media (endolymph)

- Scala tympani and Scala vestibuli (perilymph)

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5
Q

What direction do they sterocilia bend to initiate depolarisation?

A

Towards the longest

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6
Q

What do the utricle & saccule detect?

A

Linear acceleration

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7
Q

What is contained with the SSC?

A
  • Cupula in the ampulla

- Deflection by movement of perilymph

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8
Q

What is the function of the outer and inner hair cells in the Organ of Corti?

A

Outer: modulate sound
Inner: receive sound and send info back to brain

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9
Q

Presentation of Squamous Papilloma?

A

-2 peaks of incidence

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10
Q

HPV type in SCC?

A

16

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11
Q

Salivary gland: acute bilateral symptoms

A

Mumps

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12
Q

Salivary gland: acute unilateral

A

Oral infection

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13
Q

Salivary gland: recurrent unilateral symptoms, pain and swelling, worse on eating

A

Sialolithiasis (stones)

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14
Q

Bacterial causes of Otitis Externa?

A

Staphylococcus aureus
Proteus spp
Pseudomonas aeruginosa

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15
Q

Fungal causes of Otitis Externa?

A

Aspergillus niger

Candida albicans

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16
Q

Herpetic whitlow?

A

Herpes simplex virus of the finger

17
Q

What is the main difference between Vestibular Neuronitis and Labyrinthitis?

A

Larbrinitis has associated tinnitus and hearing loss

18
Q

Management of Meniere’s?

A

Salt restriction and Beta-histine

19
Q

What is the most common auditory symptom

in Migrainous Vertigo?

A

Phonophobia

20
Q

“Aural fullness”

A

Meniere’s

21
Q

“Tear drop” sign on CT

A
  • Orbital floor fracture

- “Blow out” fracture of medial wall and floor

22
Q

Imaging of choice in trauma to look at the sinuses?

23
Q

Imaging of choice to look at the auditory meatus and nerves?

24
Q

Centor Criteria

A

History of fever
Tonsillar exudates
Tender anterior cervical adenopathy
Absence of cough (cough is viral rather than bacterial)

25
What are the investigations of choice in dysphagia?
1. Endoscopy 2. Ba swallow if no abnormality 3. Malignancy: stage with CT or MRI
26
What are the investigations of choice in foreign bodies?
x-ray
27
What is US used in ENT?
- Investigation of neck lumps - Investigation and FNA of thyroid lumps - Investigation of salivary gland disease - Investigation of inflammatory masses, particularly in children to identify an abscess
28
What is the difference between benign and malignant lymph nodes?
Benign: oval Malignant: round
29
What imaging is used in neck and chest cancer staging?
- CT for larynx | - MRI for skull base
30
Imaging in sensori-neural deafness?
- MRI | - Vestibular Schwannoma
31
Imaging in conductive deafness?
- CT | - Cholesteatoma
32
What is contained within the carotid space?
Carotid artery Jugular vein Cranial & sympathetic n. Lymph nodes
33
Rhinitis classifications for intermittent and persistent?
Intermittent:4days a week AND >4weeks duration
34
Treatment for nasal polyps?
- Oral then topical steroids | - If no better, surgery
35
Acute Rhonisinusitis symptoms?
Facial pain Discharge Nasal blockage
36
Enlarged adenoid in a teenage boy?
Angiofibroma
37
Name a decongestant
Pseudoephedrine