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(A) Purpuric lesions on the patient's lower extremity. (B) Bronchoalveolar lavage fluid from the left B3 bronchus had a sanguineous appearance. (C) Cytological examination of the bronchoalveolar lavage fluid revealed histiocytes and neutrophils against a background of bleeding components (Papanicolaou stain) and (D) hemosiderin contained in alveolar macrophages (iron stain).
