Black Jack (TV) - episode 33 - 26 Jun, 2005

A friend of Sharaku witnesses a comet fall from the sky and thinks it is a UFO. Soon he develops a strange lump on his side and is admitted to the hospital. Doctors, nurses and even his own mother has been acting strangely around him... growing paranoid by the minute, he begins to suspect aliens are conducting experiments on him. Black Jack arrives, clears things up and operates on the boy... (Source: Wikipedia)