« Deep-Purple » : un cas d'hémoptysie lors d'une plongée en apnée

This event is rarely described and, although often associated with the more frequently reported pulmonary oedema of immersion, the mechanisms remain uncertain, but definitely multifactorial (barotrauma, thoracic blood transfer) and probably enhanced by deconditioning. All this emphasizes the extraordinary stresses that the alveolo-capillary membrane is subject to under these circumstances.