Aneurysmal Bone Cyst of the Clivus- A Rare Occurrence

Abstract

BACKGROUNDAneurysmal Bone Cyst (ABC) is a benign lesion, well documented in the metaphysis of the long bones and also in the thorax, pelvis, and vertebrae. But the occurrence of aneurysmal bone cyst in clivus is rare and accounts for only 1% of all cases. In this case report, we hereby discuss about an 11-year-old female who presented with neck swelling for a prolonged duration and histopathological examination revealed an aneurysmal bone cyst. This case is being presented for its rarity and also to bear in mind as a differential diagnosis in spite of its rare location. BACKGROUND Aneurysmal Bone Cysts (ABC) are benign cystic lesions of the bone. They most commonly occur in first two decades of life, having a predilection for the metaphysis of the long bones such as tibia, femur, humerus, posterior elements of vertebral bodies. Aneurysmal bone cyst occurring in the base of skull, particularly clivus is a rare occurrence and accounts for less than or equal to 1% of the cases. We hereby present a case of an 11-year-old female child who presented with the same. KEYWORDS