Pseudo-winging of Scapula due to Ventral Scapular Osteochondroma: A Case Report and Literature Review

INTRODUCTION: Osteochondroma is the most common benign tumor of bone. Scapula is a very rare site for its occurrence. CASE REPORT: A 6-year-old male presented with swelling over the left scapular region for 3 months, which was insidious in onset and gradually progressing. There was a single swelling of approximately 3 × 3 × 2 cm3 over medial border of the left scapula. It was hard in consistency with well-defined margin and irregular surface, non-tender, immobile, arising for the underlying bone, and non-adherent to skin. There was pseudo-winging of scapula. The patient was referred with an anteroposterior view radiograph and a computed tomography scan. A working diagnosis of ventral scapular osteochondroma was made. Excision of lesion was done in prone position. There was no pseudo-winging post-excision. Osteochondroma is rare for scapula. Further, pseudo-winging of scapula is seldom. CONCLUSION: Prone position with internal rotation of shoulder can make the surgery easy. Excision of the tumor helps get rid of pseudo-winging.