Dot in a circle sign

Dot in a circle sign is an MRI sign for maduromycosis or mycetoma.

It is described as a classic appearance on T2 weighted images which show a small rounded hyperintensity (representing granulation tissue), surrounded by a low signal intensity rim (representing fibrous septa) with a hypointense dot (representing susceptibility loss due to fungi) in the centre 1.

Share article

Article information

rID: 31431
Section: Signs
Synonyms or Alternate Spellings:

Updating… Please wait.

Alert accept

Error Unable to process the form. Check for errors and try again.

Alert accept Thank you for updating your details.