In the retroperitoneal space the gonadal veins form a collateral circulation that has a great clinical impact on sclerotherapy or surgical ligation of varicoceles. The aim of this study was to examine the communications of the gonadal veins (according to classification, frequency of appearance, gender and syntopic differences) in human foetuses of both sexes (71 males and 59 females) aged 4--6 ...

these investigations indicate that the anterior layer of the renal fascia continues across the midline of the body in front of the aorta and inferior vena cava to become continuous with a similar layer on the opposite side of the body. the posterior layer of the renal fascia blends with the fascia covering the psoas major especially at the medial and lateral edges of this muscle. but, in additi...

Deposition of perirenal adipose tissue has been associated with adverse renal and cardiovascular events. We compared various methods to measure perirenal adipose tissue using computerized tomography (CT)-scan and performed correlations with anthropometric measures associated with renal and cardiovascular events. Voluntary overweight and obese subjects undergoing a CT-scan for diagnostic purpose...

A previous report25 described massive hemorrhage and accumulation of turbid fluid in the subcapsular and perirenal tissues after ligation of the ureters in dogs. More detailed study has shown that these lesions result from extension of necrosis from the fornices of the pelvis through the renal parenchyma with consequent leakage of the retained fluid into the surrounding tissue. The necrosis may...

Retroperitoneal fibrosis (RPF) located unilateral perirenal without aorta involvement is very rare. We report a case of unilateral perirenal fibrosis which was misdiagnosed as malignancy even after biopsy. RPF should be in mind in dealing with perirenal mass.

Fibromatosis and/or desmoid tumors which constitute less than 1% of all neoplasms and 3.0% of all soft-tissue tumors are pathologically benign proliferations of the fibroblasts but are locally aggressive with infiltrative type of growth and tendency toward recurrence. Bilateral symmetrical perirenal involvement has been described in many conditions which can be renal, subcapsular, or perirenal ...

Primary intrarenal/perirenal neuroblastoma (NB) is NB that primarily arises in intrarenal and/or perirenal regions. Regarding its location, this tumor can mimic Wilms' tumor a more common pediatric renal tumor at presentation. Owing to diference in clinical management andprognosis, it is crucial to distinguish primary intrarenal/perirenal NB from Wilms' tumor at the time of diagnosis. Recogniti...

The development of a perirenal hematoma is rare and primarily the result of trauma, malignancy, or a connective tissue disease. Infrequently, a continuous or even mild trauma can cause a perirenal hematoma. Here, we report a case involving the development of a perirenal hematoma after excessive hula-hooping in the absence of a major trauma history.

Key words: peripelvic cysts; perirenal cysts; retroperi-The ultrasound examinations and computed tomo-toneal lymphangiectasia; renal vein thrombosis graphy (CT) revealed multiple bilateral peripelvic and perirenal cysts, enlargement of the right and shrinkage of the left kidney. A fluid specimen from these perirenal cysts was aspirated via exploratory puncture and iden