PMC7642743_01
Pre-operative abdominal MSCT scan with intravenous contrast agent, showing a large hypodense lesion in the left kidney on transverse section (A). Coronal sections of the abdominal CT-scan showing lesions with similar density in both kidneys. Notice that the lesion in the right kidney was relatively confined to the upper and medial part, leaving a proportion of normal kidney parenchyma (B).
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A marked reduction of tumour size was observed on left and right kidneys (9 x 8.5 cm to 6 x 5.2 cm and 3.5 x 3 cm to 3 x 2.1 cm respectively) (see Fig. 1).
MSCT scan examination after undergoing 24-weeks of neoadjuvant chemotherapy, right partial nephrectomy, left radical nephrectomy, and 7 fractions of 10.6 Gy radiotherapy.
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In this study, follow-up abdominal MSCT scan performed at 25-months detected a firm cystic lesion at the upper-posterior pole of the right kidney sized 22 x 18 x 15 mm (see Fig. 2).
A 1.2 cm cystic lesion (red circle) remained at the superior pole of right kidney. (A: T1-weighted axial slice; B: T1-weighted coronal slice; C: T2-weighted sagittal slice; D: T2-weighted axial slice).
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An abdominal-pelvic magnetic resonance imaging (MRI) with 2.4 ml intravenous of gadoteric acid contrast was performed at the age of 39 months to screen for recurrence and further evaluate the progression of the cyst (see Fig. 3).