Aneurysmal Bone Cyst of the Lumbar Spine: An Unusual Presentation

Case report


Abdelfettah Abushaala, Mool C.Songra

Department of Orthopedics and Spinal Surgery, Ali Omer Askar Hospital- Sbea, Tripoli, Libya

JMJ Vol.8, No.1 (Spring) 2008:72-74


A case of aneurysmal bone cyst (ABC) arising from the lumbar 4th and 5th vertebrae extending from retroperitoneum into the abdominal cavity: presenting with pain and swelling of the right lumbar region and hypochondrium and associated with clinical features of pseudo-pregnancy is reported. Neurological signs and symptoms were absent. Plain X-ray abdomen revealed a large osteolytic multicystic lesion overlying L4-L5 vertebrae resembling a developing foetal head. Clinic-pathological features, pathogenesis and management of this often encountered bone lesion are briefly discussed. Many think that this lesion should be distinguished from giant-cell tumour or telangiectatic osteosarcoma and co-existing benign and malignant tumours need to be carefully excluded because of common associations with ABC.

Keywords: Aneurysmal bone cyst, vertebrae