[Fibroepithelial polyp of the ureter in a child. A case report]. / Polype fibro-épithelial de l'uretère chez l'enfant. À propos d'un cas.

Fibroepithelial polyp of the ureter is benign tumor of mesodermal origin that rarely occurs in children. The most common presenting symptoms are hematuria and flank pain by obstruction of the urinary tract. The etiology of this tumor is not clear. It occurs more frequently in boys and often arises in the proximal ureter and the ureteropelvic junction. The preoperative diagnosis is difficult. We present the case of a 10-year-old boy who had recurrent episodes in the left flank owing to polyps of the lumbar ureter of which the fibroepithelial nature was confirmed by the pathological examination of the surgical specimen. We discuss the clinical presentations, imaging, histological features and treatment options of this unusual tumor through a review of the literature.

[Urethral diverticulum with stone complicating epispadias repair]. / Réparation d'un épispadias compliquée d'un diverticule de l'urètre avec calcul.

Diverticula of the male urethra are rare clinical entities. Congenital and acquired have similar modes of presentation. No case of urethral diverticulum, containing stone, complicating epispadias repair have been reported. We report the case of 8-year-old boy with an urethral diverticulum, containing stone, complicating epispadias repair. Diverticulectomy with removal of the stone by urethroplasty was performed. Through this observation and review of the literature, authors describe pathological and management finding of urethral diverticula.

[Mesenchymal hamartoma of the liver in a child: a case report]. / Hamartome du foie chez l'enfant : à propos d'un nouveau cas.

Mesenchymal hamartoma of the liver is a rare, benign tumor that presents mostly before the age of 2 years. Its pathogenesis is poorly understood. We present the case of a 2.5-year-old female patient who had a large cystic mass of the liver of which the hamartomatous nature was confirmed by the pathological examination of the surgical specimen. We discuss the clinicopathological, imaging, and histological features of this unusual tumor through a review of the literature.

[Conformal radiation therapy with or without intensity modulation in the treatment of localized prostate cancer]. / La radiothérapie de conformation avec et sans modulation d'intensité dans le traitement du cancer localisé de la prostate.

Conformal radiation therapy has now to be considered as a standard treatment of localized prostatic adenocarcinomas. Using conformational methods and intensity modulated radiation therapy requires a rigorous approach for their implementation in routine, focused on the reproducibility of the treatment, target volume definitions, dosimetry, quality control, setup positioning. In order to offer to the largest number of patients high-dose treatment, the clinicians must integrate as prognostic factors accurate definition of microscopic extension as well as the tolerance threshold of critical organs. High-dose delivery is expected to be most efficient in intermediary risks and locally advanced diseases. Intensity modulated radiation therapy is specifically dedicated to dose escalation. Perfect knowledge of classical constraints of conformal radiation therapy is required. Using such an approach in routine needs a learning curve including the physicists and a specific quality assurance program.