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On June 20, 1990, a young man fell on his back while playing football. After a short
rest he continued playing and finished the game. His back was stiff and sore for a few
days. On July, 3 he began to drag his left, foot, and that evening his right leg felt
weak.
When he was admitted to hospital on July, 4 his left leg was tender and completely
paralyzed, and his right leg was very weak. He had retention of urine, which lasted
ten days. Lumbar puncture produced cerebrospinal fluid (C.S.F) under slightly
increased pressure, clear, colorless, and containing 100 mg of protein per 100 ml.
Culture proved sterile. His temperature, which had risen to 101 F, reached normal on
July, 26 showed only a lumbosacral angle larger than normal.
Testing later confirmed the presence of slight weakness of the recti abdominis and
spinae muscles. Paralysis of the obliqui externi abdominis muscles, however,
remained. The left leg, too, was completely paralyzed, but there has been a slight
return of power in the right leg.