Determining the clinicopathological significance of the VI-RADS ≧4 group: a retrospective study.

Background: The Vesical Imaging Reporting and Data System (VI-RADS) is widely used for predicting muscle-invasive bladder cancer (MIBC). This study aimed to determine the clinicopathological significance of the VI-RADS ≧4 (VI≧4) group.

Methods: Patients who underwent transurethral resections of bladder tumors during the study period and preoperative magnetic resonance imaging were considered.

Vesicocutaneous fistula due to vesical diverticulitis with stones: A case report and literature review.

Introduction: We encountered an extremely rare case of a vesicocutaneous fistula due to vesical diverticulitis with stones.

Case Presentation: A 78-year-old male patient presented to our department with complaints of suppurative discharge in the suprapubic area. Computed tomography revealed an enlarged prostate, a vesical diverticulum with stones located on the ventral side, and an aberrant connection between the anterior bladder wall and the external surface of the skin.

Differential diagnosis and prognosis of small renal masses: association with collateral vessels detected using contrast-enhanced computed tomography.

Background: Active surveillance (AS) is one of the treatment methods for patients with small renal masses (SRMs; < 4 cm), including renal cell carcinomas (RCCs). However, some small RCCs may exhibit aggressive neoplastic behaviors and metastasize. Little is known about imaging biomarkers capable of identifying potentially aggressive small RCCs.