1) Congestion 2) Haemothorax 3) Medical emergency 1) Haemothorax 2) Hemathorax 3) Hemopleura 
A hemothorax (hemo- + thorax) (or haemothorax/Haemorrhagic pleural effusion) is a type of pleural effusion in which blood accumulates in the pleural cavity. ==Cause and presentation== Its cause is usually traumatic, from a blunt or penetrating injury to the thorax, resulting in a rupture of the serous membrane either lining the thorax or covering ...
collection of a bloody fluid in the pleural cavity, between the membrane lining the thoracic cage and the membrane covering the lung. Hemothorax may ...
(he″mo-thor´aks) a pleural effusion containing blood; called also hemopleura.
A collection of blood in the pleural cavity.
Hem`o·tho'rax noun [ New Latin See Hemo- , and Thorax .] (Medicine) An effusion of blood into the cavity of the pleura. 
Type: Term Pronunciation: hē′mō-thōr′aks Definitions: 1. Blood in the pleural cavity. Synonyms: hemathorax
Pooling of blood in the chest cavity.
[n] - accumulation of blood in the pleural cavity (the space between the lungs and the walls of the chest)