[Adult paratesticular sarcomas. Management and evolution of the disease].

Objective: Identify and analyze the clinic pathologic characteristics, therapeutic, and the evolution of the disease in adult patients with a diagnosis of paratesticular sarcoma.

Material And Methods: We reviewed retrospectively the medical records of patients diagnosed with sarcoma paratesticular location of the department of urology at the National Institute of Neoplastic Diseases from 1952 to 2003. Data was collected affiliation, background, symptoms, diagnostic methods, pathological diagnosis, treatment and status of the disease.

[Primary testicular lymphoma: experience at the Instituto Especializado de Enfermedades Neoplásicas, Lima-Peru].

Introduction: Testicular lymphoma is a rare illness with peculiar characteristics but with a poor prognosis.

Material And Methods: We evaluated 32 patients retrospectively studying their epidemiologic characteristics, hematologic values, histologic type, metastasis sites, the treatment given and the survival. We compared our results with international reports and we think that prospective studies are needed for better conclusions.

[Pain during transrectal ultrasound guided needle biopsy of the prostate: comparison of the use or not of lidocaine gel].

Introduction: The prostate biopsy guided by ultrasound is the method of choice for early diagnosis of prostate cancer, is a safe whose main trouble is that it feels discomfort during the procedure.

Material And Methods: From July 2004 until March 2005 we prospectively studied 114 patients who underwent transrectal ultrasound guided needle biopsy of the prostate, they were divided in two groups: in one group we used lidocaina gel 2% inside the rectum before the procedure and in the other group we did not use it. We compared the pain that patients felt during the procedure with a pain scale.

[Paratesticular mixed sarcoma: liposarcoma-rhabdomyosarcoma. Case report and bibliographic review].

Objective: Sarcomas arising from the urinary tract are rare, representing less than 2% of all urologic tumors. The paratesticular region is one of the most unfrequent locations. Leiomyosarcoma, rhabdomyo-sarcoma, liposarcoma, malignant fibrohistiocytoma, etc.