Beyond Chordoma: A Comprehensive Review of Sacral Lesions.

The sacrum is a common site for a wide range of pathological processes, including benign and malignant tumors as well as non-neoplastic conditions. Accurate diagnosis of sacral lesions remains challenging due to overlapping imaging features and the anatomical complexity of the region. This review provides a comprehensive overview of sacral lesions, with emphasis on imaging characteristics, diagnostic challenges, and clinical implications. Key imaging findings are highlighted to help narrow the differential diagnosis. While certain imaging patterns may suggest specific etiologies, image-guided biopsy is often necessary for definitive diagnosis. Familiarity with the spectrum of sacral pathologies is essential for radiologists to effectively contribute to diagnosis, patient management, and multidisciplinary care.