RUL collapse – CXR — RACP Paediatrics MCQ

Instant feedback + full explanation. One question, done properly.

ModerateRespiratoryRUL collapse – CXRRACP Paediatrics

A CXR shows a 'sail sign' with loss of right heart border and triangular opacity. Lateral shows anterior collapse. What is the most likely finding?

Educational content. Not a substitute for clinical judgement or local policy.

Reveal the answer and explanation

Correct answer: E — Right upper lobe collapse

The 'sail sign' with loss of right heart border and anterior collapse on lateral is RUL collapse, commonly from mucus plugging or FB.

Reference: RCH Melbourne – 2023 – CXR CPG