Although foramina in the scapula are a rare occurrence, they produce radiolucent defects that simulate those related to skeletal metastasis or multiple myeloma. In order to define the typical location and appearance of these foramina, we initiated a radiographic and pathologic examination of macerated modern and ancient scapulae. Of 93 macerated scapulae that were examined, foramina were observed in 27 specimens (29%). These occurred at four sites: at the superior border of the bone at its junction with the coracoid process, caused by ossification of the superior transverse ligament (21 specimens); in the body of the bone inferior to the scapular spine, resulting from a disturbance in ossification during fetal development (five specimens); in the superior fossa, as a clasp-like defect (one specimen); and, at the superomedial border above the scapular spine (one specimen). The radiographic features of these foramina were compared to those produced by normal vascular channels, anatomic thinning of the bone, and skeletal metastasis or multiple myeloma. Knowledge of the typical appearance and site of scapular foramina assures accurate diagnosis.
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