contusion

年末に向けて警察もあわただしくなっています。contusionは「挫傷、挫創」という医学用語です。bruiseよりもひどい外傷となるそうです。（Temple Gate）
Man attacks 14-year-old boy with umbrella in Hiroshima
CRIME DEC. 10, 2011 - 06:41AM JST ( 7 )HIROSHIMA —
Police in Hiroshima said Friday they are searching for a man who assaulted a boy with an umbrella on Thursday afternoon.

According to police, the victim, a 14-year-old schoolboy, was walking home with a friend in Aki Ward at around 5:30 p.m., when a man standing nearby suddenly poked him in the face with an umbrella.

TV Asahi reported that the boy was struck underneath the right eye with enough force to draw blood. The boy was taken to hospital and treated for a minor contusion. Doctors say his injury is not serious.

Police described the boy’s attacker as around 40 years old and 160 cm tall, wearing a black sweater and black jeans and carrying a shoulder bag, TV Asahi reported.

Japan Today