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.

[CT anatomy of the normal spleen: variants and pitfalls].

Normally, the spleen is located in the left hypochondrium. It is attached by the gastrosplenic and splenorenal ligaments. Its tissue composition made up of red pulp and white pulp explains the heterogenous aspect when contrast medium is injected in the arterial phase.

[Renal oncocytoma: CT diagnostic criteria revisited].

Purpose: To redefine and evaluate the computed tomographic criteria for the diagnosis of renal oncocytoma (RO) for which renal sparing surgery should be preferred.

Material And Method: Retrospective study of 57 patients with 69 RO. Macroscopic and histological correlation was obtained in all cases.

Renal angiomyolipoma with calcification: CT-pathology correlation.

Fat containing renal tumours are usually considered as angiomyolipomas on imaging modalities. Some cases of renal cell carcinoma have been reported. Although it has been previously reported, angiomyolipomas containing calcifications are very rare.

[Incisional subcutaneous endometrioma of the abdominal wall: report of two cases].

Endometriosis occurs in up to 15% of menstruating women. Abdominal wall involvement is rare and always secondary to an invasive procedure. The authors report the imaging and clinical findings of two patients with subcutaneous endometrioma following cesarean section.

[Primary retroperitoneal tumors in adults].

Primary retroperitoneal tumors are rare and most of the time malignant. Because of the large space in which they grow, they are often discovered lately as they are large. CT and MR are the imaging techniques of choice for the primary diagnosis and the follow up of these tumors.

[Diagnostic imaging of peripheral renal vascular disorders].

Peripheral vascular disorders of the kidney involve the intrarenal branches of the renal vascular tree. It include occlusive (infarction and cortical necrosis) and non-occlusive vascular lesions (acquired arteriovenous fistulas, arteriovenous malformation, false aneurysms and microaneurysms). Initial diagnosis relies on color Doppler US and CT angiography.