case_images: PMC10388245_01
case_images: Preoperative ultrasound results. (A) Ultrasound showed a moderate echogenic area at the dorsal side of the lower pole of the right kidney. (B) Ultrasound showed blood flow signal inside the echogenicity.
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case_images: F1
case_images: Significantly, the internal echogenicity of the area was heterogeneous with unclear borders and irregular morphology, and there was a blood flow signal inside the echogenicity, suggesting parenchymal occupancy at the dorsal side of the lower pole of the right kidney near the envelope (Figures 1A,B).
case_images: Upper abdominal computed tomography showed a slightly dense nodular occupancy in the lower pole of the right kidney. (A) Coronal plane. (B) Transverse plane. (C) MRI showed a circular nodal shadow on the lower pole of the right kidney.
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case_images: F2
case_images: The result of the CT scan showed a circular iso-density shadow measuring 16.3 mm x 11.9 mm x 9.4 mm on the lower pole of the right kidney on 13 September 2021 (Figures 2A,B). Additionally, MRI result also showed a circular nodal shadow measuring 10 mm x 9 mm on the lower pole of the right kidney on 14 September 2021 (Figure 2C).