what is used to investigate suspected inhaled or ingested radio-opaque foreign bodies?
plain radiographs
what is the 1st line investigation of neck lumps?
ultrasound
when are FNAs taken in neck lumps?
in suspected lymph node malignancy, or assesment of masses in salivary glands and evaluation of thyroid lumps
on US, what do benign lymph nodes tend to look like?
- elliptical
- have an obvious central fatty hilum
- have an organised vascular blood supply centred on the hilum
what accounts for 80% of thyroid lumps?
benign with hyperplastic nodules
is CT or MRI better for imaging the larynx?
CT
what scan better for pathologies affecting the skull base?
MRI
what technique is used for most sinus surgery?
FESS - functional endoscopic sinus surgery
what imaging technique is best to be used when investigating sensorineural HL?
MRI
what imaging technique is best to be used when investigating conductive HL?
CT
what does the pharyngeal mucosal space contain?
mucosa, lymphoid tissue, constrictor muscles
contents of masticator space?
mandible, muscles, CN V
what pathologies can affect the masticator space?
dental abscess/cyst
contents of carotid space?
- carotid artery
- jugular vein
- cranial and sympathetic nerve
- lymph nodes
pathlogies that can affect the carotid space?
- schwannoma
- paraganglioma
- lymph nodes
