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A case report and review of literature of Dieulafoy's disease of bronchus: A rare life-threatening pathologic vascular condition.

Medicine (Baltimore) 2019 Februrary
RATIONALE: Dieulafoy's lesions are characterized by the presence of a dysplastic artery in the submucosa, most frequently associated with gastrointestinal hemorrhage. They are rarely identified in the bronchial submucosa and can cause massive or fatal hemoptysis PATIENT CONCERNS:: The patient was a 62-year-old male farmer with intermittent hemoptysis of approximately 2 years duration and a definite diagnosis could not be established.

DIAGNOSIS: A thorax-computed tomography at our hospital revealed that the bronchus of left lower lobe was narrowed with associated local atelectasis, and lung cancer was suspected. A bronchoscopy showed a slit-like stenosis of the left lower lobe, swollen and smooth mucosa, and a significantly wider subsection carina.

INTERVENTIONS: A fatal hemorrhage occurred during biopsy and, rescue and resuscitation measures were immediately taken. A double-lumen endotracheal intubation was implanted and single-lung ventilation was started to maintain oxygenation. Hemoptysis completely stopped after bronchial artery embolization.

OUTCOMES: The patient eventually died of disseminative intravascular coagulation and multiple organ failure. Bronchial arteriography and subsequent autopsy confirmed Dieulafoy's disease of the bronchus.

LESSONS: In cases with recurrent unexplained hemoptysis, where CT chest or thoracic radiography show no abnormalities, pulmonologist should suspect a bronchial Dieulafoy's disease and avoid blindly performing bronchoscopy guided biopsy, which may result in fatal hemoptysis.

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