Beevor's sign in facioscapulohumeral muscular dystrophy: an old sign with new implications.

Abstract excerpt

Beevor's sign, an upward deflection of the umbilicus on flexion of the neck, is the result of paralysis of the inferior portion of the rectus abdominis muscle, so that the upper fibers predominate, pulling the umbilicus upwards. The condition may be caused by spinal cord injury at or below the level of Th10. It has also been observed in patients with facioscapulohumeral muscular dystrophy (FSHD). Positive...

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