[Anterior urethral valve in a five year old boy (author's transl)]

The authors report the case of a valve of the anterior urethra in a five year old boy, which was carefully explored from a radiological, endoscopic and urodynamic standpoint. The lesion was successfully treated by transurethral resection. The features of this type of obstructive problem are discussed in the light of the case, together with the diagnostic value of urodynamic studies and endoscopic photography and, finally, the possibilities of treatment, emphasising the simplicity and effectiveness of transurethral resection.

[Lesions of immature renal parenchyma in the region of an abnormal aortic polar artery during arterial hypertension in the young adult. anatomo-clinical example]

A female patient of 22 with major hypertension was operated upon for a dyspalastic diaphragm stenosis of the right renal artery; she had otherwise a left lower polar aortic artery. The histological study was under-taken on four comparative biopsy specimens. In the aortic polar artery territory, the signs of atrophic dysgenesis were demonstrated: rarefaction and sclerosis of the glomeruli, sclerosing intretitial infiltration. They reproduce exactly the lesions of immature kidneys described by Marshall.