Pitfall or Real?
Separate physiological uptake, disease, artefact and benign mimics. Practise identifying the feature that changes your interpretation.
What you will practise
- Recognise patterns described in the vignette.
- Distinguish a mimic from a technical artefact.
- Explain which contextual clue supports the answer.
Set up your round
84 questions available
A smaller pool gives a shorter round. In timed mode, the clock sets the round length. Prompt length is a study preference, not a validated difficulty rating.
Before you begin
Open an example to revisit its answer and reasoning.
Symmetric FDG uptake in the supraclavicular & paraspinal fat on a cold day.
Answer
Physiological
ReasoningBrown adipose tissue — classic symmetric physiological FDG uptake; warming/beta-blockade reduces it.
Intense, symmetric salivary and lacrimal gland uptake on ⁶⁸Ga-PSMA PET.
Answer
Physiological
ReasoningSalivary/lacrimal glands physiologically express PSMA — a normal finding, not disease.
Linear tracer activity along both ureters on ⁶⁸Ga-PSMA PET.
Answer
Physiological
ReasoningUrinary excretion of the tracer — physiological; do not mistake for nodal disease.