Radiocolloid Scintigraphic Mapping of the Lymphatic Drainage of the Prostate

Radionuclide lymphoscintigraphy with the new microcolloid 99mtechnetium antimony sulfide is a diagnostic technique with potential application in patients with urologic malignancy. Scintigraphic images were obtained after simple interstitial injection into the prostate of 9 normal dogs and 2 patients with prostatic cancer and into the testis in 2 dogs. The images show the physiologic lymphatic drainage of the organs injected.