A medical error at Kyoto University Hospital has resulted in a woman in her fifties being placed on a ventilator after a surgeon removed healthy brain tissue instead of the intended benign tumor. The patient had originally sought medical attention due to symptoms of dizziness and unsteadiness, though she remained capable of performing daily activities prior to the surgery.

Following the incident, the hospital issued a formal apology and committed to implementing new safety protocols to prevent future occurrences. The case has drawn attention to surgical oversight, though details regarding the specific circumstances leading to the misidentification of the tissue remain limited. While the hospital has acknowledged the error, the long-term prognosis for the patient’s recovery has not been publicly disclosed. The incident was first brought to light through reporting by the local outlet TV Asahi, which highlighted the severity of the outcome for a patient who was otherwise functional before the operation.