ENT Flashcards
A child presenting with fever, irritability, malaise and pain in the ear with no effect on hearing is likely what?
Acute otitis media
When are antibiotics prescribed for acute otitis media?
- child <3 months
- child <2 years with bilateral OM
- sx persisting >4 days
- perforated membrane
How does acute mastoiditis present? What is it a complication of?
Boggy mass over over mastoid process (post auricular swelling), tender to palpation, often systemically unwell.
Otitis media.
Cholesteatoma is a complication of what? What is it?
Chronic otitis media.
Accumulation of skin and squamous epithelium within middle ear and mastoid air cells.
What differentiates mild, moderate, severe, and malignant Otitis externa?
Mild: itchy ear associated with some discharge, no pain, tympanic membrane visible
Moderate: pain, discharge, can view tympanic membrane
Severe: pain, discharge, external auditory meatus occluded so cannot view membrane
Malignant: spreads to skull base causing osteomyelitis and can cause cranial nerve palsies
A schwann cell tumour in the subarachnoid area is what? What are the sx? How do we investigate?
Vestibular schwannoma.
Sensorineural hearing loss, tinnitus (CN 8 impacted), loss of corneal reflex (CN 5 compression), headaches (mass effects).
MRI head.
What is presbycusis?
Age related sensorineural hearing loss
Build up of lymphatic fluid in inner ear causing dilation of endolymphatic spaces is what? What are the sx?
Meniere’s Disease.
Tinnitus, vertigo, low-mid frequency sensorineural hearing loss, ‘fullness of ear’, occurs in episodes which can be 20 minutes - 12 hours.
How is Meniere’s disease managed?
Initially with reduced salt intake diet and diuretics to reduce fluid in the endolymphatic spaces.
Betahistine can be used prophylactically to prevent episodes.
For acute attacks can use prochloperazine.
What is Battle Sigb?
Bruising of the mastoid process due to a subcutaneous haematoma, indicative of a skull fracture.
A history of facial swelling without any red flag features is most commonly what?
Benign pleomorphic adenoma - benign parotid tumour.
What is Warthins tumour?
benign parotid tumour associated with RFs (smoking, male, etc). Often occurs bilaterally.
What is an adenoid cystic carcinoma? Why does it have a higher risk of complications than benign tumours of the parotid gland?
Malignant tumour of the parotid gland.
Malignant nature makes it much more likely to invade surrounding structures such as facial nerve.
What are the RED FLAGS for nasal pathology (6)?
- Unilateral obstruction
- bloody discharge
- facial pain/swelling
- trismus (jaw muscle spasm)
- epiphora (watery/runny eye)
- proptosis (eyeball protrusion)
Bilateral cherry red swelling on rhinoscopy is what? How is it managed?
Septal haematoma (bleeding under the perichondrium lining of septal cartilage).
Mx: emergency incision and drainage to prevent infection and cosmetic deformities.