PMC10388245_01
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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F1
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).
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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F2
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).