Recurring Filling Defect of the Renal Pelvis - Keratinising Desquamative Squamous Metaplasia (kdsm)

The authors report a case of keratinising desquamative squamous metaplasia (KDSM) and review the literature on the topic. The aetiology and clinical-radiological characteristics are described and the long-term (8 years) efficiency of percutaneous treatment is emphasised

[Erratic course of bilateral angiomyolipomas]

We report a case of multiple and bilateral renal angiomyolipomas demonstrated and followed up by urography, sonography, and computed tomography during a period of 17 years. The diagnosis has been made by computed tomography. Follow-up examinations showed first a stability of the lesions, and afterwards, a rather fast increase of the volume of various masses, without symptoms, followed by a new period of stabilization