Simple and complex renal cysts in adults: Classification system for renal cystic masses.

Ultrasound and slice imaging are currently the key modalities for diagnosing simple renal cysts. Benign simple renal cysts are defined by a set of strict criteria. Any cystic lesions that do not meet these criteria should be classified as "atypical" or "complex" and considered as suspicious.

Renal papillary carcinoma: CT and MRI features.

Purpose: To describe the CT and MRI appearances of papillary renal cell carcinoma.

Materials And Methods: Retrospective study of 102 papillary carcinomas in 79 patients, 81 tumors examined by CT and 56 by MRI. Tumor size, homogeneity and contrast enhancement were recorded.

How to characterise a solid renal mass: a new classification proposal for a simplified approach.

The reference method for characterising a solid renal mass is computed tomography. MRI and ultrasound can provide useful diagnostic information for characterising masses the cystic or solid nature of which it is not possible to determine from data from the CT scan. For characterising a solid mass, only MRI can replace the CT scan in most cases.

Radiofrequency ablation of renal tumours: diagnostic accuracy of contrast-enhanced ultrasound for early detection of residual tumour.

Objective: To evaluate the diagnostic accuracy of contrast-enhanced ultrasound (CEUS) in the early detection of residual tumour after radiofrequency ablation (RFA) of renal tumours.

Methods: Patients referred to our institution for RFA of renal tumours prospectively underwent CEUS and computed tomography (CT) or magnetic resonance imaging (MRI) before, within 1 day and 6 weeks after treatment. Identification of residual tumour was assessed by three blinded radiologists.

[MR imaging of large and rare pelvic masses from non-gynecological etiology].

The diagnosis and characterization of pelvic masses may be problematic, especially when they are larger than 5 cm in diameter. The majority of large pelvic masses in women originate from gynecological structures. However, they may also originate from the GI tract, urinary tract, retroperitoneum, pelvic soft tissue structures, peritoneum and bones.