Solitary osteochondroma arising in lumbar spinous process: Case report

Abstract

Solitary osteochondromas rarely occur in the axial skeleton. Those tumors mostly arise on the posterior elements of the cervical column causing various symptoms especially when developing within the spinal 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 process appearing to be a solitary osteochondroma. The lesion was treated by en-bloc resection; histopathological examination confirmed the diagnosis of osteochondroma with no evidence of recurrence at the end of 2-year follow up.

Application of 3D-Printed Model in the Cervical Spine Osteochondroma Surgery: A Case Report

“…10,11 Plain radiography is useful to diagnose osteochondromas of the extremities. 1 However, osteochondromas arising from the spine are difficult to diagnose by this method and clinical features alone because of the complicated anatomy of the spine. Because our case presented with a smooth, nontender, bulging mass over the posterior-right oropharynx, it was reasonable for our initial impression to be a tonsil tumor.…”

“…12 Considering the unconventional location of the osteochondroma in our case and the necessity of en bloc resection to prevent recurrence, we applied 3D-printing technology to assist in the surgical planning for its transoral resection. 1,2 The role of 3D-printing applications in the ENT field is emerging, including building auricular reconstruction frameworks, treating severe tracheomalacia, reconstructing complex tracheal, creating patient-specific mandible templates, performing endoscopic sinus or skull base surgeries, and even evaluating prenatal congenital airway obstruction. [13][14][15][16][17] Preoperative uses include demonstrating potential anatomy…”

“…Osteochondroma constitutes 10% to 15% of all bone tumors 5 and 20% to 50% 1 of benign bone tumors. These tumors are predominant in males, and most are diagnosed during the 20s to 30s, with mostly affecting the long bones, particularly the femur and tibia.…”

“…12 Considering the unconventional location of the osteochondroma in our case and the necessity of en bloc resection to prevent recurrence, we applied 3D-printing technology to assist in the surgical planning for its transoral resection. 1,2…”

“…Osteochondroma, which constitutes 20% to 50% 1 of benign bone tumors, typically presents as a nontender, painless, cosmetic deformity related to a slowly enlarging exophytic mass. These tumors are prominent in males, with most diagnosed during the 20s to 30s and affecting the long bones.…”