ENT Flashcards
What two structures is the external ear made up of ?
- External auditory canal
2. Pinna
What parts of the external auditory canal are cartilage and what is bone?
First 1/3rd is cartilage
The next 2/3rd is bone
Which part of the external auditory canal contains glands and allows for secretions?
The outer 1/3rd cartilage section.
Contains ceruminous glands that secrete wax
What 3 nerves supply the pinna ?
- Facial nerve
- Lesser Occipital nerve
- Greater auricular nerve
What are 3 causes of cauliflower ear ?
- Trauma
- Infection
- Inflammation
What is the pathophysiology behind cauliflower ear?
Cartilage necrosis
What is the function of the middle ear? 2 functions:
- Amplify sound
2. Transmit sound
What are the 3 bones in the middle ear?
- Malleus
- Incus
- Stapes
MIS - in order from ear drum to distal
What ear structure detects head acceleration?
What ear structure detects linear acceleration?
The 3 semicircular canals detect head acceleration
The Utricle and Saccule detect linear acceleration
What is vertigo?
Spinning/Movement of the surrounding environment
What are the two types of vertigo?
- Central (problem with the brain)
2. Peripheral (problem with the ears)
What are the 4 main causes of Vertigo?
- Benign Paroxysmal Positional Vertigo (BPPV)
- Menieres Disease
- Vestibular Neuronitis
- Vestibular Migraine
Describe how Benign Paroxysmal Positional Vertigo (BPPV) may present..
Normally common in people 40-60s. More common in women.
Dix Hallpike positive (you get nystagmus) plus you get rotational vertigo on moving the head
Describe how Menieres Disease presents…
Middle aged women.
Hearing loss
Tinnitus
Rotational vertigo
Comes in attacks so above symptoms get worse in a flare
How will vestibular neuronitis present?
- Sudden onset no hearing issues.
- The patient will have severe N+ V and be confined to bed
How would a vestibular migraine present?
It would present with rotational vertigo
Headache
Photophobia
Visual changes
Phonophobia
What is the management of the following conditions?
BPPV
Menieres
Vestibular neuronitis
Vestibular migraines
BPPV: Epley manoeuvre
Menieres: low salt diet, betahistine and diuretics
Vestibular Neuronitis: anti emetics
Vestibular migraine: migraine meds
If a patient has suspected vertigo what investigations would you like to do?
Dix Hallpike’s Test
Pure Tone Audiometry
Video Head Impulse Testing
What is a pharyngeal pouch?
An outpouching of the mucosa and the Submucosa of the pharynx
Between two muscles the cricopharyngeus and the thyropharyngeus
What is a Zenker’s Diverticulum ?
This is a pharyngeal pouch
Who are pharyngeal pouches common in?
Incidence increases with age
More common in men
How do Zenker’s Diverticulum aka pharyngeal pouches present?
- Assymptomatic if small
- Progressive dysphagia
- Lump in back of throat
- Regurgitation of undigested food
- Halitosis
- Recurrent chest infections
How would you diagnose a pharyngeal pouch?
Barium Swallow
Rigid oesphagoscopy
How do you manage a pharyngeal pouch ?
- Assymptomatic: Conservative treatment
2. Symptomatic: Endoscopic stapling
What is globus pharyngeus ?
When you get the sensation of a lump or discomfort in the throat with no obvious cause.
Diagnosis of exclusion, Need to do a flexible nasopharyngoscopy.
What is a thyroglossal cyst?
A thyroglossal cyst is an embryological remnant of the thyroglossal tract
Commonly seen in children and associated with an ectopic thyroid! So need to ensure they have one first!
How does a thyroglossal cyst present?
Generally assymptomatic=. However can swell up and become tender if the patient is suffering from a URTI.
The mass is palpable and moves up on swallowing or tongue protrusion
What investigations do you need to do on someone with a thyroglossal cysts?
You need to do an US scan to determine if they have an ectopic thyroid
Then do a fine needle aspiration to determine the cause
What is the management of a thyroglossal cyst?
- Conservative
2. If troublesome: may need to do surgery
If a patient had a diffuse multinodular goitre would they be hypothyroid, euthyroid or hyperthyroid?
Euthyroid
What investigations would you do on someone with a multinodular goitre?
- CT scan
- Bloods
- Thyroid US with fine needle aspiration
Can you watch and wait if you have a multinodular goitre?
YES
Who are parotid neoplasms more common in ?
Males or Females ?
Females
Are parotid neoplasms more likely to be benign or malignant?
80% are benign
What is the most common type of parotid neoplasm?
Pleomorphic Adenoma
How do you treat a parotid neoplasm?
Surgery
Are submandibular and sublingual neoplasms more likely to be benign or malignant?
Malignant
What is the most common form of malignant sub man or sub lingual neoplasm?
Mucoepidermoid
How would you manage a mucoepidermoid neoplasm?
Parotidectomy
What lymphoma is increased risk if you have Sjögren’s syndrome ?
Non Hodgkin’s Lymphoma
How do you investigate salivary gland mass?
US and biopsy
Use a CT to stage
How to salivary gland neoplasms present?
Slow growing painless mass
Red flag: ulceration, tenderness and hardness
Facial palsy can suggest malignancy
What cell type is cancer of the oral cavity?
Squamous Cell Carcinoma
What is cancer of the oral cavity associated with RF wise?
Smoking
Alcohol
How does cancer of the oral cavity typically present?
Painless ulcer or white plaques that never heals
Less common: bleeding and numbness
How do you investigate a cancer of the oral cavity?
Biopsy under GA
CT to stage
Who is carcinoma of the lip common in?
Old Men
Who are fair skinned and had lots of sun exposure
Anatomically what are two places where lip cancer typically presents?
Anterior 2/3rd of the tongue
Lateral border of the tongue
What are two causes of obstructive sleep apnoea in children?
large adenoids or tonsils
Large tongue (genetic cause)
What is the gold standard investigation used to diagnose obstructive sleep apnoea?
Nocturnal Polysomnography (measures EMG, EEG, ECG and O2 stats)
What are some investigations you would like to do in a patient with suspected OSA?
Nocturnal Polysomnography
Neck Circumference and BMI index
Flexible nasopharyngolaryngoscopy
Epsworth Sleepiness Score
What virus is pharyngeal cancer associated with?
What are 2 other RF?
EBV
Smoking and Alcohol
If you have recurrent epistaxis in a young adult male. What disease are you thinking?
How do you treat it?
Especially a male, Think could this be juvenile nasopharyngeal angiofibroma
Surgery
What are 3 symptoms of pharyngeal carcinoma?
Ear pain
Recurrent secretory otitis media with no URTI symptoms
Cervical lymphadenopathy
Anosmia and Epistaxis
What are three investigations you would want to do in a suspected pharyngeal cancer?
Nasal endoscopy
FNA of nodes
MRI
How do you treat pharyngeal cancer?
Radio and Chemo
What are oropharyngeal cancers normally secondary to?
HPV virus
How does oropharyngeal cancer present?
- Trismus (painful Jaw locking)
- painless unilateral tonsil swelling
- Throat pain
- Lump in throat and difficulty swallowing.
What are some investigations for pharyngeal cancer?
Panendoscopy and Biopsy
FNA of lymph nodes
MRI
Management of oropharyngeal cancer?
Surgery
Radio + Chemo
Is it common to get mets with hypoglossal cancer?
YES
Where does hypo pharyngeal cancer normally arise from?
Pyriform Sinus
How does hypopharyngeal cancer normally present?
Cervical lymphadenopathy and pain that radiates from the throat to the ear
You get vocal and swallowing issues
What is Paterson Brown Kelly syndrome?
Dysphagia
Hypochromic microcytic anaemia
Oesphageal webs
Hypopharyngeal cancer