The patient, a 52-year-old male, was admitted to the hospital in an emergency with sudden onset of headache and impaired consciousness for 3 hours. A cranial CT examination suggested subarachnoid hemorrhage, and a 3D-DSA examination showed multiple intracranial aneurysms, among which a huge aneurysm in the right middle cerebral bifurcation was the responsible aneurysm, with three distal arterial branches penetrating through the aneurysm wall, and two other aneurysms were located in the anterior communicating artery, with the apex of the aneurysm pointing anteriorly and posteriorly. Due to the large size of the aneurysm, the walls of the vessels in the bifurcation of the three M2 branches expanded as part of the aneurysm, and the four vessels, including M1, became a “sphere-antenna” shape centered on the aneurysm. The aneurysm shaping combined with aneurysm clamping technique was adopted to ensure complete clamping of the aneurysm while keeping the aneurysm-carrying artery and its branches unobstructed. After the operation, the patient was awake, and the limbs moved freely. A repeat CTA also confirmed that the aneurysm was completely clamped and the aneurysm-carrying vessels were unobstructed, achieving the expected satisfactory results. middle cerebral aneurysm(1) middle cerebral aneurysm(2) middle cerebral aneurysm(3) middle cerebral aneurysm plastic clamping(1)(2) large anterior communicating aneurysm(1) anterior communicating aneurysm clamping(1)