[Percutaneous fine needle cytopuncture of lymph nodes opacified by lymphography, in urogenital pathology. Apropos of 174 cases].

Percutaneous fine needle puncture of lymph nodes after lymphography with contrast has been performed in 174 patients with urogenital tumors (bladder: 108, prostate: 41, testes: 25). Conducted under direct television screen control the procedure is simple to perform and provokes little discomfort for the patient, since it is painless and relatively non-traumatic. Needle puncture is a reliable technique resulting in no false positives and very few false negatives when carried out using the previously described technique (routine sampling and technical success). Combining lymphography with needle puncture is of undoubted value for detecting extension of tumor and improving choice of therapy.