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We present a case of hypersensitivity angiitis causing a segmental infarction of the testis. The lesion presented as a discrete, palpable mass that led to orchiectomy. Hypersensitivity angiitis has not been reported previously to affect the testes or to produce a segmental infarct in any solid organ. A discussion is given of the vasculitides, especially periarteritis nodosa, that may involve the testes.

Congenital arteriovenous malformations in the true pelvis are extremely rare: only 7 cases have been described in male patients. We report on a patient who presented with massive hemorrhage after transrectal prostatic biopsy and transurethral resection of the prostate. Diagnosis was established by means of magnetic resonance imaging and confirmed by arteriography. Our attempt at management by embolization and subsequent surgical ligation is described. A literature review and discussion of arteriovenous anomalies are presented.

We report a case of vascular compromise secondary to the reservoir of an inflatable penile prosthesis. The problem masqueraded as deep venous thrombosis in the lower extremity of a patient 3 years after a spinal cord injury.

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We describe the occurrence of a renoduodenal fistula related to a nephrostomy tube in a patient with xanthogranulomatous pyelonephritis and renal calculi. The patient was successfully treated by nephrectomy. Etiological, diagnostic and therapeutic aspects are discussed.

Since 1969 cryosurgical perineal destruction of the prostate has been developed at the University of Iowa for treatment of patients with prostatic cancer. The technique of this procedure has been the subject of previous reviews. This is a summary of our experience of patient survival and the effect on local prostatic cancer growth in those patients with various stages of the disease subjected to perineal cryosurgical destruction of their cancer. We also report briefly on our experience in the laboratory where the Dunning tumor model is used to study the effect of cryosurgery as well as combinations of immunological modifications.