Solitary osteochondroma arising in lumbar spinous process: Case report

Abstract

Solitary osteochondromas rarely occur in the axial skeleton. Those tumors mostly arise on the posteriorelements of the cervical column causing various symptoms especially when developing within thespinal canal. Exophytic lumbar variety is uncommon presenting with palpable mass or spinal deformity.We report a 20-year-old man presenting with a solid painless mass at the lower lumbar region.Radiological examinations revealed an exophytic lesion arising in the third lumbar spinous processappearing to be a solitary osteochondroma. The lesion was treated by en-bloc resection; histopathological examination conŞrmed the diagnosis of osteochondroma with no evidence of recurrence at theend of 2-year follow up