case_images: PMC11805597_01
case_images: Renal ultrasound. The figure depicts a focal rounded contour in the renal cortex which could represent a mass.
case_images: cureus-0017-00000077154-i01.jpg
case_images: PMC11805597_01_cureus-0017-00000077154-i01.jpg
case_images: FIG1
case_images: The findings described above are shown in Figure 1.
case_images: Abdominal MRI . The figure depicts a non-contrast MRI showing the 4.4cm x 8.2 cm mass in the transplanted kidney.
case_images: cureus-0017-00000077154-i02.jpg
case_images: PMC11805597_01_cureus-0017-00000077154-i02.jpg
case_images: FIG2
case_images: It showed a 4.4 cm by 8.2 lesion (Figure 2).
case_images: Kidney biopsy sample with p63 staining confirming squamous cell carcinoma. Magnification used x40
case_images: cureus-0017-00000077154-i03.jpg
case_images: PMC11805597_01_cureus-0017-00000077154-i03.jpg
case_images: FIG3
case_images: Based on the above findings, interventional radiology was consulted to perform a renal biopsy, which revealed SCC with a histologic differentiation characteristic of primary renal origin (Figure 3 and Figure 4).
case_images: Kidney biopsy sample with HMWK staining confirming squamous cell carcinoma. Magnification used x400. HMWK: High-molecular-weight cytokeratin
case_images: cureus-0017-00000077154-i04.jpg
case_images: PMC11805597_01_cureus-0017-00000077154-i04.jpg
case_images: FIG4
case_images: Based on the above findings, interventional radiology was consulted to perform a renal biopsy, which revealed SCC with a histologic differentiation characteristic of primary renal origin (Figure 3 and Figure 4).