ISDE (intracranial subdural empyema) is a potentially fatal disorder. Patients who have had previous intracranial surgeries are more likely to develop ISDE. ISDE might be challenging to identify due to its non-specific clinical appearance. We provide a rare case of ISDE that mimicked a recurrent chronic subdural hematoma, underlining the importance of obtaining early magnetic resonance imaging of the brain for early diagnosis and treatment in order to achieve the best possible outcome.