10: ENT radiology Flashcards
Where do foreign bodies tend to lodge?
Cricopharyngeus
C6
Which x-rays should you do for suspected foreign bodies?
PA
Lateral
How is dysphagia usually investigated?
Endoscopy
How is dysphagia investigated if endoscopy finds no abnormalities?
Barium swallow
How is dysphagia further investigated if malignancy is suspected?
MRI / CT scan
What can form in the pharynx, causing regurgitation?
How is it picked up?
Pharyngeal pouch
Barium swallow
What oesophageal problems may be picked up by a barium swallow?
Strictures
Spasm
Gastroparesis
What is the first line, non-invasive imaging technique?
Ultrasound
What structures of the head and neck may be scanned using ultrasound?
Salivary, thyroid, parathyroid glands
for lumps and abscesses
Which investigation is ultrasound used to aid?
Fine needle aspiration (FNA)
What shape do benign lymph nodes tend to be on ultrasound?
Ovoid
Malignant ones are round
Benign lymph nodes have a central ___ ___.
fatty hilum
Malignant ones don’t
Which gland of the neck is scanned using ultrasound / FNA?
Thyroid gland
What scan is used to investigate trauma, masses and vocal cord palsy?
CT scan
Which structures of the nose can become infected and are scanned using CT?
Paranasl sinuses
