What is it? Where is it? And… how did it get there?
Any person wondering “is that a cucumber?” does not appreciate the great utility of CT density. A cucumber is mainly water and so would appear grey on CT but this vegetable is black and so contains a lot of air. Can you think of a vegetable that is a similar shape to a cucumber but is a lot less dense? If you can then you have just learnt one answer to this quiz question. The next thing to learn is that this vegetable is best taken orally!
QUIZ: Child with a cough. Initial chest xray is on the left with the right image taken 3 months later. What was the original diagnosis? What would your management have been? Click to play VIDEO ANSWER
Note: this specific case is discussed at the 2:00 min mark but the lead up discussion is really important to understanding the diagnosis