2024年12月19日 · Diffuse alveolar hemorrhage (DAH) is a subset of diffuse pulmonary hemorrhage when bleeding is diffuse and directly into the alveolar spaces. It can occur in a vast number of clinical situations and can be life-threatening.

2021年9月1日 · Idiopathic pulmonary hemosiderosis causing diffuse alveolar hemorrhage. The chest X-ray illustrates attributes of a central distribution: sparing of the apices, lung periphery, and costophrenic angles. Identifying a central distribution may be a valuable clue to diagnosing diffuse alveolar hemorrhage (discussed further here: ).

Diffuse alveolar hemorrhage (DAH) is a life-threatening and medical emergency that can be caused by numerous disorders and presents with hemoptysis, anemia, and diffuse alveolar infiltrates. Early bronchoscopy with bronchoalveolar lavage is usually required to confirm the diagnosis and rule out infection.

DAH is radiologically characterised by a nonspecific alveolar-filling pattern. Diagnosis or suspicion of DAH needs to be supported by the evidence of haemoptysis and/or rapid-onset anaemia. CT is superior in detecting ground-glass opacities and is required in cases of suspected DAH with normal CXR f …

2020年11月3日 · CXR – patchy alveolar opacification (may appear normal!) CT chest – areas of consolidation and ground glass changes interspersed with ‘normal’ areas; Special tests. bronchoscopy – BAL, document alveolar haemorhage (frank blood, >5% haemosiderin-laden macrophages), exclude airway source, exclude infection

DAH is radiologically characterised by a nonspecific alveolar-filling pattern. Diagnosis or suspicion of DAH needs to be supported by the evidence of haemoptysis and/or rapid-onset anaemia. CT is superior in detecting ground-glass opacities and is required in cases of suspected DAH with normal CXR findings.

2009年8月27日 · Diffuse alveolar hemorrhage (DAH) is a clinicopathologic syndrome describing the accumulation of intraalveolar RBCs originating from the alveolar capillaries. All causes of DAH have the common denominator of an injury to the alveolar microcirculation.

2016年7月7日 · Diffuse alveolar hemorrhage (DAH) is characterized by the clinical triad of (1) blood in the terminal airspaces, (2) anemia, and (3) infiltrates on chest radiographs. In DAH, bleeding occurs at the level of the alveolar capillaries, arterioles, or venules.

2018年10月22日 · CXR: Diffuse bilateral alveolar infiltrates, no pathognomonic findings; BAL: serial bloody aspirate with sequential sampling; CT: Non-specific GGO; Biopsy: Tissue biopsy of the lung is definitive in confirmation of DAH but underlying cause might not be revealed. Management. Treat underlying cause

Diffuse alveolar hemorrhage (DAH) is a clinical syndrome defined by generalized intra-alveolar bleeding originating from the pulmonary microcirculation. Patients commonly present with dyspnea, hemoptysis, anemia, diffuse radiographic pulmonary infiltrates and hypoxemia.