The accuracy of renal tumor biopsy: analysis from a national prospective study.

Objective: To assess preoperative renal tumor biopsy (RTB) accuracy.

Materials And Methods: As part of the prospective NEPHRON study, data from 1,237 renal tumors were collected, including the use and results of RTB and final histology following nephrectomy. During the 6 months period of inclusion, 130 preoperative biopsies were performed.

[Contusions of the abdomen in children].

Marked progress in the treatment of abdominal contusions in children over the last few years is due to the development of conservative surgery to the spleen and even possible abstention from operation following splenic injuries. The reliability of paraclinical exploratory procedures has increased, and ultrasound and CT scan imaging have reduced the need for peritoneal puncture-lavage. However, and unresolved problem concerns associated visceral lesions, and although treatment of isolated splenic injuries is fairly well detailed that of hepatic lesions raises difficulties because of lack of data on exact location of lesions and the anatomical damage produced.

[Experimental realization of a continent ileocolic valve in rats].

The ileocecal valve plays a primordial role in pediatric digestive disorders. Various technical procedures have been proposed based on formation of an anastomosis with invagination of the distal extremity of the ileal segment into the colic portion. A resection of 20% of the small intestine and an ileocolic anastomosis were performed in the rat using three different methods: simple end-to-end ileocolic anastomosis, ileocolic anastomosis with invagination of ileal segment, and ileocolic anastomosis with ileal hemi-valve intubated into colon.

[Cavernous hemangioma of the bladder in children. Apropos of a case].

Benign tumours of the urinary bladder are very rare in children. A new case of cavernous haemangioma of the bladder is reported in a five year old boy presenting with macroscopic haematuria. This tumour is a hamartoma which usually presents with painless haematuria.