title: Retrograde phlebography of the internal spermatic vein in varicocele.
mesh_terms: D000293:Adolescent; D000328:Adult; D006801:Humans; D007248:Infertility, Male / Q000000981:diagnostic imaging; D008297:Male; D008875:Middle Aged; D010690:Phlebography / Q000379:methods; D013737:Testis / Q000098:blood supply*; D014646:Varicocele / Q000000981:diagnostic imaging*