question: I've noticed a lump inside my penis, dorsal side directly behind the glans, rather quickly growing, hard, and has become sensitive to examination, has caused a curvature, and is causing noticeable discomfort during sex.  what could it be?  approximate time from discovery (felt like a thickening of a vein) to thumbnail size (width) 1 inch @ length, and thicker near the glans (@3/4 ")  less than 60 days.