Hungarian Radiology

[Renal cystic lesions The importance of CT in diagnosis and management in correlation with Bosniak classification]

MOHAMMED Al-Absi, ABDULMALIK Qais, IBRAHIM Al-Nono, ABDULILAH Ghilan, MOHAMMED Abdul Gafour

JUNE 20, 2006

Hungarian Radiology - 2006;80(03-04)

[OBJECTIVE - The purpose of this study was to assess the importance of CT in differentiating renal cystic masses of surgical causes from those of non-surgical masses. PATIENTS AND METHODS - The patients included in this study were collected from a private diagnostic center and university hospital prospectively, yielding a total of 55 analyzable renal cystic lesions. A careful helical CT abdomen focusing on the kidneys with intravenous contrast was obtained from all patients. The lesions were categorized into surgical and medical renal cystic masses using the Bosniak classification system supported by histology reports and follow up protocols for medical cases. RESULTS - Of 55 cases, 35 were classified as surgical (13 lesions as category IV and 22 as III) and 20 as medical cases (15 as category II and 5 as III). Out of 22 resected category III lesions 15 were found to be malignant and all categorized as type IV were malignant. No malignancies have been identified in the prospectively monitored group of patients. CONCLUSION - Our series results are comparable with other teaching institution series, and support the usefulness of the Bosniak classification system in separating renal cystic lesion into surgical and non-surgical lesions but with diagnostic categorization difficulty of complicated multilocular hydatid cysts versus neoplastic (category III) cystic masses.]

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