Presentation
Known case of hyperthyroidism.
Patient Data
Age: 25 years
Gender: Male
From the case:
Thyroid associated orbitopathy
Axial non-contrast

There are frank proptosis and extraocular orbital muscle enlargement with insertion sparing.
Case Discussion
Features suggest thyroid associated orbitopathy, the most common cause of proptosis in adults and most frequently associated with Graves disease.