Lung Postmortem Autopsy Revealing Extramedullary Involvement in Multiple Myeloma Causing Acute Respiratory Distress Syndrome

Figure 1

(a) Computed tomography thorax revealed severe bullous emphysema and diffuse, patchy, multifocal air space infiltration bilaterally with a nodular character, small bilateral pleural effusions, and mediastinal lymphadenopathy. (b) Lung tissue specimen from the autopsy revealing nodular tumoral infiltrate (hematoxylin and eosin ×2.5). (c) Lung tissue specimen from the autopsy revealing characteristic abnormal plasma cell infiltrates (hematoxylin and eosin ×40). (d) Immunohistochemical staining of the tissue specimen showing multiple myeloma cell positive for IgG (original ×40).

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