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We report a case of small cell carcinoma of the urinary bladder in 71-year-old male patient. Oat cell of the urinary bladder is extremely uncommon, and up to date only 135 cases have been reported in word literature. Histologic, microscopic, and immunohistochemical characteristics are similar to oat cell carcinoma of the lung and other extrapulmonary oat cell carcinomas. We conclude this report with immunohistochemical study with PGP 9.5, neuron-specific enolase a synaptophisine.

The essence of self-transfusion is the extraction of a patient's own blood for subsequent infusion to the same patient. The practice of this strategy has become particularly important from the moment the likelihood of AIDS virus transmission through transfusion with homologous blood products became known. This article presents our experience in both open and endoscopic BPH surgery over the period ranging from January 93 to December 94, and analyzes the health care and socioeconomic aspects of that experience.

Urothelial inverted papilloma account for 2.2% of all urothelial tumours. The preferred location is the bladder; they occur singly and are generally benign, although the majority of authors agrees in treating this entity as a tumour of low aggressiveness. The report contributes four cases of inverted papilloma, three in male patients and the fourth in a female. One was located in the renal pelvis. A revision is made of the etiology, clinical signs and symptoms, diagnosis and treatment, as well as their relationship to surface carcinoma, as it occurs asynchronously in one of the cases described.