case_images: PMC4996555_01
case_images: Axial (A) and coronal (B) CT slices demonstrating an atrophic left kidney without any identifiable mass or lesion.
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case_images: f1
case_images: A CT scan of the abdomen and pelvis with and without contrast then demonstrated a markedly atrophic left kidney without any excretion of the contrast material into the collecting system (Fig. 1).
case_images: Low-power microscopy demonstrates cystically dilated tubules within a fibrotic stroma. Thyroidization and lymphoid follicles are noted in the surrounding atrophic renal parenchyma.
case_images: fig-2.jpg
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case_images: The superior pole mass was analyzed and identified as a tubulocystic RCC, Fuhrman nuclear grade III/IV (Figs. 2 and 3).
case_images: There is a hobnail appearance to the lining of the tubules characteristic of tubulocystic renal-cell carcinoma. There are prominent nucleoli and abundant cytoplasm in these neoplastic cells.
case_images: fig-3.jpg
case_images: PMC4996555_01_fig-3.jpg
case_images: f3
case_images: The superior pole mass was analyzed and identified as a tubulocystic RCC, Fuhrman nuclear grade III/IV (Figs. 2 and 3).