Donor-Derived Urothelial Carcinoma in Renal Transplant Recipients

Figure 2

(a) For case 1, nephroureterectomy showed the friable tumor in the dilated ureter. (b) The kidney was bivalved to reveal a 17 cm yellow fleshy mass with hemorrhage and focal necrosis. (c) Hematoxylin and eosin stain showed tumor cells consist of diffuse sheets of small round to oval malignant cells with frequent mitotic activity, exhibiting small-cell features (×400). (d) Immunostaining showed tumor cells are strongly positive for synaptophysin (×400).

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