ENT Flashcards
A 32 year old man presents with a 1 month Hx of offensive ear discharge from the left ear. Examination reveals a facial nerve palsy and there is an attic perforation of the tympanic membrane. What is the likely diagnosis?
Cholesteatoma
An 82 year old woman presents with a one day Hx of a severely painful right ear, a right facial palsy and a vesicular rash around the right ear. What is the diagnosis?
Herpes zoster otitis - Ramsay Hunt syndrome
What is an acoustic neuroma and what are the symptoms?
Slow growing neurofibroma arising from the acoustic nerve’s vestibular division
Ipsilateral tinnitus, sensorineural deafness, giddiness
What are the most common variety of submandibular tumours?
Adenoid cystic
What should be done to manage a patient with a suspected submandibular tumour?
Fine needle aspiration
CT
Surgery with node dissection
Radiotherapy
What are symptoms of carotid body tumours?
Asymptomatic Dysphagia Hoarseness Stridor Weakness of the tongue Compression of vagus or hypoglossal nerves
In which group of people are carotid body tumours more likely?
Those living at altitude
What is the most common site for glandular calculi? Why?
Submandibular
High calcium content in saliva
What is the treatment for submandibular duct calculi?
Opening warthins duct and milking stone along
Excision of gland
What is the second most common parotid rumour?
Adenolymphoma/warthins tumour
A 53 year old woman is seen in clinic reporting pain in left hand on exertion such as when she brushes her hair. At rest her pulses are palpable but they disappear after repeatedly elevating her arm. An X-ray is performed that confirms the diagnosis. What is it?
Thoracic outlet syndrome
What is the definitive test for thoracic outlet syndrome?
Adsons test - palpate radial pulse on affected side with elbow fully extended
Patient rotate head to side being tested and extend neck
Abduct extend and laterally rotate the shoulder
Patient take deep breath and hold
Positive test - decrease in pulse vigor
What is Roos test?
Patient raises arm to 90 degrees of abduction with arms fully externally rotated and elbows at 90 degrees flexion
Open and close hands for 3 mins
If unable to hold arms up or if pain /paraesthesia
Test for thoracic outlet syndrome
A child puts a pea in his ear while having dinner and is taken to paeds ED by his father. Otoscopy shows a green object in the external auditory canal. What is the appropriate action to remove this?
Suction
What are contraindications to syringing an ear?
Tympanic membrane perforation Vegetable matter Otitis media Otitis externa History of ear surgery Unilateral deafness
Why is the hyoid bone resected with a thyroglossal cyst?
Prevent recurrence
When is hemithyroidectomy performed for thyroid nodules?
Cytology of nodule is equivocal or when follicular cells are seen as follicular adenomas cannot be differentiated from follicular carcinomas by cytological assessment
What operation is performed for thyroid cancer if there is spread to local lymph nodes?
Total thyroidectomy with central compartment node clearance
What is the function of calcitonin?
Inhibits osteoclast function
What can cause hair cell damage and therefore lead to sensorineural hearing loss?
Gentamicin toxicity Bacterial meningitis Skull fracture Noise exposure Presbycusis Genetic syndromes Hereditary deafness Acoustic neuroma
What is otosclerosis and what type of hearing loss does it lead to?
Overgrowth of bone in the middle ear fixing the foot plate of the stapes at the oval window, leading to a conductive hearing loss
If present untreated for many years, the cochlear can become affected and a mixed loss results
What are causes of a thyroid nodule? What should be done to investigate it?
Colloid cyst
Adenoma
Carcinoma
Fine needle aspiration
What causes benign positional vertigo?
Degenerative inner ear changes that result in debris impacting on the hair cells giving rise to the sensation of movement
What technique can be used to demonstrate the symptoms of benign positional vertigo?
Hallpike manoeuvre