Development of subdural empyema from subdural effusion after suppurative encephalitis: A case report

Figure 1 Clinical pictures of the patient. At his first hospital visit (February 3, 2022), the patient was diagnosed with suppurative meningitis and bilateral subdural effusion (predominantly on the left side). A: At his second hospital visit (March 9, 2022), the left subdural lesion was significantly enlarged, the left lateral ventricle had disappeared, and the midline had shifted to the right; B: He was diagnosed with subdural empyema; C: The dura mater was exposed during the operation, and was colored yellow-green with high tension; D: Head computed tomography after left burr hole drainage (April 7, 2022) revealed a significant reduction in the left subdural lesions, and recovery of the left lateral ventricle and the midline shift.