Aneurysmal bone cyst of the mandible: A case report and review of literature

Abstract

Aneurysmal bone cyst (ABC) is rare benign lesions of bone which are infrequent in craniofacial skeleton. ABC's are characterized by rapid growth pattern with resultant bony expansion and facial asymmetry. We describe a case of ABC in a 25 year old male patient affecting the body of the mandible with expansion and thinning of the buccal and lingual cortical plates. Treatment consisted of surgical curettage of the lesion. A one year follow- up showed restoration of facial symmetry and complete healing of the involved site.

Keywords: Aneurysmal bone cyst; benign bone lesions; mandible; psuedocyst.

Figure 1

(a) Mandibular occlusal radiograph showing expansion of the cortical plates; (b) panoramic radiography showing a unilocular radiolucency extending from 45 to 48 region; (c) axial CT image of the mandible showing cortical expansion and thinning

Figure 2

(a) Intraoperative photograph after the curettage; (b) photomicrograph of the lesion showing numerous vascular spaces lined by endothelial cells and multinucleated giant cells (H and E, 10×); (c) photomicrograph showing multinucleated giant cells in the fibrous tissue (H and E, 40×)

Figure 3

Postoperative panoramic radiograph, 1 year after curettage, showing no recurrence