[A case of lumbar canal stenosis with intermittent penile erection].
D006801:Humans; D008160:Lumbosacral Plexus / Q000503:physiopathology; D008297:Male; D008875:Middle Aged; D009192:Myelography; D010410:Penile Erection; D010507:Periodicity; D011187:Posture; D013130:Spinal Stenosis / Q000000981:diagnostic imaging / Q000503:physiopathology*