Head and Neck Radiology Flashcards
what are the 3 different types of contrast studies?
Swallows
Sialograms
Sinograms
when would you use a barium swallow?
FOSIT, post op leaks,
what is a sialogram?
injection of contrast medium into the salivary duct
what is a Sinogram?
injection of contrast media into sinus
what is an oesophageal pouch?
protrusions from the oesophagus that cause swallowing difficulties and regurgitation
what is a Parotid calculus?
Stone in parotid duct
Face will swell after eating
Most stones pass themselves
what is sialectasis?
cystic dilation of the ducts of salivary glands.
what is a Blom-Singer valve assessment used for?
allows patient to speak with more ease after a total laryngectomy
when is a node likely malignant when observed through ultrasound?
not oval, and no fat in centre(pale)
what is a Parathyroid adenoma ?
benign tumor of the parathyroid gland. It generally causes hyperparathyroidism
what is a Sestamibi scan used for?
localize parathyroid adenoma
what investigations are best used for the different parts of the ear?
middle ear-Ct ideal as bones and gas
Inner ear- use MRI as soft tissues
external ear visible vie endoscope
what is atresia?
absence or abnormal narrowing of an opening or passage in the body ie EAC
Tc-99m pertechnetate is used to measure which tissue?
thyroid
what is PET scan used for?
Unknown primary
Detection of recurrence post treatment
Assessment of treatment response
