Pneumothorax-associated fibroblastic lesion in combination with localized pleural angiomatosis: A possible cause of juvenile spontaneous hemopneumothorax.

Spontaneous hemopneumothorax is an uncommon but potentially life-threatening condition, with a potential for a rapid ventilatory collapse and a large collection of hidden blood loss into the pleural cavity. Here, we report the first case in the literature on pneumothorax-associated fibroblastic lesion in combination with localized pleural angiomatosis in a 19-year-old Caucasian male, resulting in massive spontaneous hemopneumothorax and hypovolemic shock. Our findings support a causal link between this condition and pneumothorax. The possible superimposed hemothorax is explainable by the pleural involvement of large angiomatous vessels, prone to rupture.