Abstract
Prominence or "winging" of the scapula was described in 1825 by Velpeau, who attributed this deformity to paralysis of the serratus anterior muscle.<sup>1</sup>Since that time cases of this type have been reported due to poliomyelitis, birth palsy, postinfluenzal neuritis, diphtheria, erysipelas, cerebral palsy and progressive muscular dystrophy.<sup>2</sup>Ball<sup>3</sup>has reported a case of paralysis of the serratus anterior in a midshipman following an injection of antitetanic serum, and McGoogan<sup>4</sup>reported 3 cases occurring during the puerperium. Such trauma as the following may cause the same deformity: swinging at a punching bag and missing, being kicked by a horse, pulling energetically on a hand clutch, golfing, using crutches, pressure from a cast, the postural habit of sleeping on the outstretched arm,<sup>5</sup>following an abdominal operation,<sup>6</sup>carrying weights on the shoulder and a direct fall.<sup>1</sup>Search of the literature on this subject fails to
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