Culture Monster pointed to this Canadian Broadcasting report on Ai Weiwei’s surgery last week:
The artist, who has posted pictures of himself on Twitter, said a surgeon in Munich told him he needed immediate surgery because of bleeding in the intercranial cavity between his brain and skull. The 52-year-old artist had the operation Monday.
The avant-garde Beijing-based artist is in Germany ahead of his October exhibit there. He said he’d suffered dizziness ever since being punched in the head and detained in a hotel in Sichuan province in August. Twenty uniformed and plainclothes police converged on the hotel where he was staying and threatened to kill him, he said.
Chinese Artist Blames Police Beating for Brain Injury (CBC)