Abstract
Background:Typical aneurysmal bone cysts (ABCs) are osteolytic, multicystic lesions with parietal sclerosis and blood-filled cysts. In rare instances, the cystic components may be completely absent. Such solid variants in ABC (s-ABC) exhibit a solid architecture; making the clinical, radiological, and histological differentiation from other solid bone tumors like osteosarcoma (especially giant cell rich osteosarcoma) and giant cell tumor, a difficult task.Case Report:We report the case of a 45–year-old male presenting with a giant solid cervical spine lesion. Histopathology revealed solid variant of ABC, even though the radiological and fine needle aspiration cytology studies pointed toward a giant cell tumor.Conclusion:We aim to discuss the clinical, radiological, and histological findings of solid ABC (a rare benign entity) vis-à-vis the common neoplastic entities of osteosarcoma and giant cell tumor. The histopathological nuisances in making the diagnosis of s-ABC are put forth, along with its impact on management of such giant bony spinal lesions.
Highlights
Typical aneurysmal bone cysts (ABCs) are osteolytic, multicystic lesions with parietal sclerosis and blood‐filled cysts
We report a case of solid variants in ABC (s‐ABC) presenting as a giant cervical spine lesion and present the clinical, radiological and histological findings of this rare benign entity vis‐à‐vis the common neoplastic entities of osteosarcoma and giant cell tumor (GCT), and discuss its diagnostic implications
The cystic components may be completely absent, and the tumor exhibits a solid architecture; making it impossible to differentiate from other solid bone tumors like osteosarcoma, GCT, etc.[7]
Summary
Typical aneurysmal bone cysts (ABCs) are osteolytic, multicystic lesions with parietal sclerosis and blood‐filled cysts. The cystic components may be completely absent. Such solid variants in ABC (s‐ABC) exhibit a solid architecture; making the clinical, radiological, and histological differentiation from other solid bone tumors like osteosarcoma (especially giant cell rich osteosarcoma) and giant cell tumor, a difficult task. Case Report: We report the case of a 45–year‐old male presenting with a giant solid cervical spine lesion. Histopathology revealed solid variant of ABC, even though the radiological and fine needle aspiration cytology studies pointed toward a giant cell tumor
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