Xanthogranulomatous pyelonephritis presenting as a pseudotumour.

Introduction: Xanthogranulomatous pyelonephritis (XGPN) is an atypical form of chronic pyelonephritis referred to as the "great imitator" because the clinical and radiological findings closely resemble other pathological entities, especially for the focal forms. Distinguishing focal XGPN from renal cancer is preoperatively difficult.

Methods: We report a total number of 12 pseudotumoural XGPN cases diagnosed and treated in our department.

Bladder Cancer is Associated with Low Plasma 25-hydroxyvitamin D Concentrations in Tunisian Population.

Little evidence suggests an impact of vitamin D on bladder cancer risk in Caucasians. This study aimed to investigate association of plasma 25-hydroxyvitamin D (25-OHD) with urothelial bladder cancer (UBC) risk in Tunisians. A case-control study included 250 patients with UBC and 250 healthy controls.

[Atypical renal cysts].

Background: Atypical renal cysts are suspicious for malignancy. It is hard in some cases to give a sharp radiological diagnosis and propose an appropriate management.

Aim: To give the histological results of the operated atypical renal cysts and to establish a correlation between the radiological findings and histological features.

[Papillary renal cell carcinoma: clinic and pathological study about 27 cases].

Background: Papillary renal cell carcinoma (PRCC) represent 10 to 15% of renal tumours in adults. They contain more than 75% of tubule-papillary structure and are divided histologically into two subtypes. The distinction between these two sub-types is essential because of different prognosis.

Association of FokI polymorphism of vitamin D receptor with urothelial bladder cancer in Tunisians: role of tobacco smoking and plasma vitamin D concentration.

The aim of the study was to test whether the VDR FokI polymorphism is associated with the risk of urothelial bladder cancer (UBC) in Tunisians. The study included 200 unrelated patients with UBC and 200 healthy controls. Genotyping of the VDR FokI polymorphism was determined by PCR-RFLP method.

Paratesticular pleomorphic rhabdomyosarcoma: a report of two cases.

Pleomorphic rhabdomyosarcoma (RMS) is a rare tumor with an aggressive behavior, described mainly in adulthood. Herein we present two cases of paratesticular pleomorphic RMS in 71- and 16-year-old patients with metastases at initial diagnosis. Histological, immunohistochemical, and ultrastructural findings were essential to confirm diagnosis.

A colourachal-cutaneous fistula: a report of an unusual case.

Urachal anomalies are rare affections due to incomplete closure of urachus during foetal period. Colo-urachal-cutaneous fistula is an uncommon complication of urachal anomalies. Only three cases have been reported so far in the literature.

[Retroperitoneal ganglioneuroma. A case report].

Background: Ganlioneuroma is a rare, benign, neurogenic tumor originating from the neural sheath and frequently localized in the retroperitoneum.

Aim: Report of a new case.

Case: We report a case of a 36-year-old woman presenting isolated right lumbar pain.

[Vesico-sigmoid fistula secondary to diverticulitis: a case report].

Vesico-sigmoid fistula is a rare complication of colic diverticular disease. It develops when the bladder sticks to an inflammatory colon making of a communication between the bladder and the digestive segment, usually the sigmoid. Liquid usually passes from the colon to the bladder because of the existing pressure gradient.

[Predictive factors of morbidity and mortality after surgery in the elderly].

Unlabelled: The aim of the study was to determine prognostic factors of post operative morbidity and mortality for patients aged 80 years and older. We compared two groups of patients aged 80 and over operated to determine predictive factors of morbidity and mortality: group of patients who presented post operative complication within 30 days after surgery and group of patients without any complication. Comparison of the two groups for global morbidity using univariate analysis showed only one prognostic factor: surgery of diabetic foot (p = 0.