Computed Tomography-guided Percutaneous Pelvic Bone Biopsy: Technical Success, Diagnostic Performance, and Safety

Objective: To evaluate the technical success, diagnostic performance, and complications of CT-guided pelvic bone biopsies. Material and Method: Fifty patients (32 women, 18 men; mean age: 57.5 ± 15.5 years; range: 20–91) who underwent CT-guided pelvic bone biopsy (sacrum, ilium, ischium, pubis, proximal femur) between 2017 and 2024 were included. Biopsies were performed by interventional radiologists with a minimum of five years of experience. Lesion size, location, type (lytic, sclerotic, or mixed), pathology results, technical success, diagnostic performance, and complications were recorded from patient files and the Picture Archiving and Communication System (PACS). Complications were classified as minor or major according to the Society of Interventional Radiology (SIR) guidelines. Results: Technical success was 100% (50/50). Pathology revealed malignancy in 25 (50%) patients, benignity in 15 (30%), and nondiagnostic results in 10 (20%), yielding a diagnostic performance of 80%. Nondiagnostic lesions were significantly smaller than malignant (p=0.002) and benign (p