ORL Radiology Www.1aim
Transcript of ORL Radiology Www.1aim
ENT Radiology for Undergraduat
esby
Professor Dr
Hassan WahbaORL Department
Faculty of MedicineAin Shams University
Radiologic views in Ear, Nose & Throat:
• Oblique lateral (Mastoid)
• Lateral skull
• Lateral neck
• Barium swallow esophagus
• Chest
• CT scan nose & paranasal sinuses
Pneumatised mastoid: air spaces separated by bony partitions
Non-pneumatised (sclerosed)
mastoid no air spaces
Chronic suppurative otitis media
showing pathological
cavity (cholesteatoma)
which is irregular, non-anatomical & contains bone sequestra in a
sclerosed mastoid
Post-operative cavity of mastoidectomy: regular,
anatomical & clean
Nasopharynx ,palate, posterior choana, sella, frontal and sphenoid sinuses
Lateral skull
Fracture nasal bones
Adenoid
Nasopharyngeal tumor: soft tissue
shadow in the nasopharynx causing
narrowing of the airway in an adult.
Antrochoanal polyp soft tissue shadow in the
nasopharynx pedunculated from the nose on the upper surface of the palate
Congenital choanal atresia Absence of
the posterior
nasal openings into the
nasopharynx as shown by dye in the nose
Nasal foreign body (nail)
Pituitary tumor enlarged
sella turcica
Lateral neck
Hypopharyngeal malignancy: wide
prevertebral space pushing the airway
anteriorly in the lower half of the
neck
Acute retropharyngea
l abscess wide prevertebral space flexed neck
Chronic retropharyngeal abscess
wide prevertebral space and destroyed bodies of cervical
vertebrae
Cancer larynxSoft tissue shadow causing
obstruction of the laryngeal airway – tracheostomy
Barium swallow esophagus:
Normal: no stenosis
Post-corrosive: narrow long or short segment stricture with smooth conical beginning
Cancer: irregular filling defect (shoulder appearance or rat tail appearance)
Cardiac achalasia: at the lower esophagus with huge prestenotic dilataion
Post-corrosive stricture: long or short segment with smooth usually conical beginning and small to moderate prestenotic dilatation
Cancer esophagus: irregular filling defect causing esophageal stenosis
Cardiac achalasia
:
Lower esophageal stenosis with huge prestenoti
c dilatation
COMPARE
Pharyngeal
pouch
Normal PA
Chest
Inhaled radio-opaque
foreign body
Inhaled radioluscent foreign body:
Non-aerated lung
Narrow intercostal space
Shifted mediastinum
Raised copula of diaphragm
= absorption collapse
Right upper lung lobe collapse
Inhaled radioluscent foreign body:
Both lungs aerated
Wide intercostal spaces
Shift in the mediastinum away
Depressed copula of diaphragm
= obstructive emphysema (check valve)
Swallowed
foreign body
Sinus
view no
longer of any value replaced
by CT scan
CT scan paranasal sinuses and nose coronal view is the best
to study the paranasal sinuses and nose
Concha bullosa
Concha paradoxa
Deviated Septum
Maxillofacial trauma
sinusitis
Right frontal Left maxillary
Bilateral maxillary
CystFluid
Right ethmoid
Allergic Polyps
Antrochoanal polyp
Fungal
sinusitis opaque sinus with areas of increased
radiodensity
Mucopyocele opaque sinus
with expanded wall with no wall destruction
Angiofibroma enhanceable pear shaped swelling in the
nose and nasopharynx
CANCEROpaque destroyed wall & lost anatomical
landmarks
EAR NOSE & THROAT
by
Professor Dr Hassan Wahba
Professor of Ear, Nose and Throat
Faculty of Medicine Ain Shams University
1000 MCQs in ENT
by Professor Dr Hassan Wahba
Professor of Ear, Nose and Throat Faculty of Medicine
Ain Shams University
Text and references to help the fourth year
undergraduate student