Monod sign (aspergilloma)

Case contributed by Frank Gaillard
Diagnosis almost certain
ct

Single zoomed image of a CT of the chest demonstrating an aspergilloma in a pre-existing lung cavity; this is known as Monod's sign of fungus ball.

How to use cases

You can use Radiopaedia cases in a variety of ways to help you learn and teach.

Creating your own cases is easy.