[Kidney cysts in the computerized tomogram--incidence and therapeutic consequences]

Area of Science:

• Radiology
• Urology
• Medical Imaging

Background:

• Simple renal cysts are frequently identified during abdominal imaging.
• The high incidence necessitates a selective approach to diagnostic evaluation.

Purpose of the Study:

• To evaluate the incidence and characteristics of renal cysts found in abdominal computed tomography (CT) scans.
• To assess the necessity and outcomes of urologic evaluation and therapy for patients with renal cysts.

Main Methods:

• Retrospective analysis of 2000 consecutive abdominal CT scans.
• Identification and characterization of renal cysts.
• Review of subsequent urologic evaluations and treatments.

Main Results:

• Accurate kidney evaluation was possible in 788 patients.
• Simple renal cysts were found in 5.6% of cases.
• Urologic intervention was required in a surprisingly small number of patients.

Conclusions:

• The high incidence of simple renal cysts makes universal diagnostic exploration impractical.
• Diagnostic exploration should be reserved for cases suspicious for renal tumors.
• Surgical intervention, when indicated, can be performed safely without significant risk to the kidney or patient.
• Non-surgically managed cysts require confirmation via ultrasound with cyst puncture and analysis.