%0 Journal Article %A P Baas %A J Stam %T Spontaneous haemopneumothorax: a rare clinical entity %D 1991 %R 10.1183/09031936.93.04081027 %J European Respiratory Journal %P 1027-1028 %V 4 %N 8 %X A 39 yr old man presented with a spontaneous pneumothorax. On initial pleural drainage 120 ml of haemorrhagic fluid were collected. Twenty four hours, after re-expansion of the lung, shock developed and 1,200 ml of haemorrhagic fluid were spontaneously collected. The diagnosis haemopneumothorax was considered and at operation a bleeding vessel, which originated from the parietal pleura, was located and coagulated. The occurrence of an air fluid line at radiological examination, the development of a haemorrhagic pleural effusion and shock should alert the physician of this entity. This case stresses the importance of early recognition and surgical intervention because of the possible lethal evolution. %U https://erj.ersjournals.com/content/erj/4/8/1027.full.pdf