hemothorax
  血胸
  he·mo·tho·rax /ˌhɪməˈθo(ə)rˌæks, ˈθɔ(ə)r-/ 名詞
  血胸
  Hem·o·tho·rax n.  Med. An effusion of blood into the cavity of the pleura.
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  hemothorax
       n : accumulation of blood in the pleural cavity (the space
           between the lungs and the walls of the chest) [syn: haemothorax]