[Extracorporeal high-intensity focused ultrasound: therapeutic alternative for renal tumors].

Objectives: High intensity focused ultrasound (HIFU) is known to be used for the treatment of solid tumors in minimally invasive procedures. Transducers allowing for application of ultrasound from an extracorporeal focus have recently been developed. A review is provided of the development, physical principles, and current status of this therapy, and our early experience with it for the treatment of renal tumors is reported.

Small cell carcinoma of the urinary bladder treated with chemotherapy and radiotherapy: results in five cases.

Small cell carcinoma of the bladder is a rare and highly aggressive tumor. We report our experience with 5 consecutive patients treated with systemic chemotherapy and adjuvant radiotherapy. TNM stages were T2N0M0 (1 patient), T3aN0M0 (3 patients) and T3bN1M0 (1 patient).

[Malignant rhabdoid tumor of the kidney in the adult].

Presentation of a malignant rhabdoid renal tumour. This type of sarcoma which occurs commonly during the paediatric age is exceptional in the adult, this being the reason for reviewing this clinical case and its management. The term rhabdoid includes several types of morphologically similar tumours which make analysis and pathological categorization difficult.

[Intraluminal crystalloids in prostatic carcinoma: morphologic and histochemical study].

The histological sections of 302 diagnosed cases of prostate carcinoma were analyzed for intraluminal crystalloids, correlating their presence, number and characteristics with other morphological parameters used for the diagnosis of prostate carcinoma. Evidence of these structures was found in 65 cases (21.5%).