title: Venous extravasation at retrograde urethrography: precautions.
mesh_terms: D003287:Contrast Media / Q000009:adverse effects*; D006801:Humans; D007275:Injections, Intravenous / Q000009:adverse effects; D008297:Male; D008722:Methods; D014521:Urethra / Q000000981:diagnostic imaging*; D014525:Urethral Stricture / Q000000981:diagnostic imaging; D014567:Urography / Q000009:adverse effects; D014680:Veins
chemical_list: D003287:Contrast Media