Retroperitoneoscopy for biopsy of pelvic and medium-low para-aortic lymph nodes and tissues.

: A mediastinoscope is used for pelvic, low and medium retroperitoneoscopy. Twelve procedures have been performed in 11 selected patients. The method is proposed for diagnosis and staging of lymphomas, genitourinary tumors and other miscellaneous pathology of the retroperitoneum.