Fig. 2

The findings of the skin of lower leg, lung, and right inguinal lymph node at autopsy. (a) Purpuric nodules were seen on the bilateral lower leg (left). The lower lobes of the bilateral lungs were congested (right). (b) Lymphoma cells with rhomboidal or round nuclei were observed to have diffusely infiltrated into the lymph node. (c) Although the alveoli were filled with air (left), the pulmonary alveolar septa and capillary vessels were filled with atypical lymphocytes (right). Bar = 500 μm (H&E staining) (original magnification: × 40) (left). Bar = 100 μm (H&E staining) (original magnification: × 200) (right). (d) Immunohistochemistry revealed that the lymphoma cells that had infiltrated the lymph node were negative for CD4 but positive for CD8. Bar = 50 μm (original magnification: × 400)