Unicameral bone cysts (UBCs) are common benign tumor-like bone lesions. They are also known as simple or solitary bone cysts. Most benign bone tumors have a characteristic appearance on radiographs. Their appearance can aid in diagnosis and decrease unnecessary additional imaging or invasive diagnostic procedures. They are typically asymptomatic and found on imaging incidentally. However, when symptomatic, it is usually as a result of a pathologic fracture causing pain, swelling, or deformity. Treatment is not required unless the bone cyst is large and leads to deformity or symptoms, or there is an impending fracture.
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