Fig. 5

Pathological findings of the recurrent lesions in the lung. a Hematoxylin and eosin staining showed that the tumor cells were morphologically similar to those of the primary hepatic AML tumor (original magnification ×400). b Immunohistochemical staining was diffusely positive for HMB-45 (original magnification ×200), c negative for SMA (original magnification ×200), and d negative for c-kit (original magnification ×400). e The Ki-67 labeling index was 9.0 % (original magnification ×200)