Tunica IntimaBlood VesselsTunica MediaPenile IndurationTesticular HydrocelePenisUrologic Surgical Procedures, MaleElastic TissueLymphatic VesselsMuscle, Smooth, VascularCoronary VesselsAortaRetinal VesselsArteriesEndothelium, VascularArteriosclerosisCarotid ArteriesImmunohistochemistryPenile ImplantationNeovascularization, PhysiologicPenile ProsthesisNeovascularization, PathologicImpotence, Vasculogenic