The pathologist's approach to pulmonary hemorrhage is outlined. Most cases fall into those
examples of pulmonary hemorrhage caused by localized sites of bleeding, and those
examples that fall within the spectrum of diffuse alveolar hemorrhage. The histologic
evaluation of pulmonary hemorrhage is outlined including assessment of fresh hemorrhage
in alveolar spaces (including exclusion of traumatic hemorrhage related to the procedure)
and the presence of hemosiderin and it's various causes. The most common causes of …