Radiology Spot Questions Flashcards
This x-ray was taken from an un-immunised child with stridor.
What is the main virulence factor for the causative organism?
This image shows the “thumbprint” sign of epiglottitis.
The causative organism is Hib.
The major virulence factor for Hib is its polysacharide capsule, which is composed of polyribosylribitol phosphate.
This x-ray is from an ex-construction worker.
What has he been exposed to?
Which cancers is he at greatest risk of developing?
Asbestosis (pleural plaques).
Bronchogenic carcinoma > malignant mesothelioma.
In the context of hyponatraemia, what is the likely cause of this abnormal chest radiograph?
What other paraneoplastic syndromes are associated with this aetiology?
The hilar mass on the right is likely caused by an obstructing small cell lung cancer causing SIADH.
Other paraneoplastic syndromes include:
Lambert-Eaton myasthenic syndrome
Cushing syndrome
Cerebellar ataxia
