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Egyptian Journal of Radiology and Nuclear Medicine
Fig. 3 | Egyptian Journal of Radiology and Nuclear Medicine

Fig. 3

From: Role of magnetic resonance imaging in characterization of cystic renal lesions based on Bosniak classification version 2019

Fig. 3

A 65-year-old male patient complaining of right loin pain. Axial T2-WI of the right kidney (A) showed a right mid-zonal cystic lesion with heterogeneous high SI and low SI mural nodule at its infero-medial aspect. This cystic lesion showed heterogeneous low SI at axial T1WI (B) and showed a thick, non-enhancing wall (4 mm) and an enhanced mural nodule reaching 6 mm with an obtuse angle to the wall at axial corticomedullary (C), nephrographic (D), and coronal DCE-MRI images (E). By consensus, cystic lesion was categorized as Bosniak class IV with both original and version 2019 systems. In view of the enhanced mural nodule that was seen with an obtuse angle to the wall, the patient underwent right radical nephrectomy, and histopathology was papillary renal cell carcinoma

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