Background This study was conductedto assess bone tumours, including primary and secondary, using magnetic resonance imaging. Methods This was a hospital-based prospective observational study conducted among 100 patients to study the MRI characteristics of bone tumours at Padmashree Dr.D.Y. Patil Medical College and Hospital and Research Centre, Pimpri, Pune, over a period of two years from September 2020 to July2022 after obtaining clearance from the institutional ethics committee and written informed consent from the study participants. Results There were 49% women and 51% men among the patients. In our patients, 38% of the tumour locations were in the femur, and 8% were in the tibia. In 99 percent of the patients, margins were present. The majority of patients (50%) had margins that were well defined, with 10% having poorly defined margins. In 50% of the patients, the MRI revealed cortical involvement and a soft-tissue component in 30% of the cases. The most common outcomes of cortical involvement were cortical destruction (8%)and outgrowth-continuation of the cortex (14%). Both joint and neurovascular involvement were absent in all individuals. 7% of patients had tumour extensions detected on their MRIs. The MRI and x-ray results showed a significant degree of agreement with respect to the tumor's soft tissue component, cortical involvement, and extension. Osteidosteoma, chondrosarcoma, giant cell tumour, ewings sarcoma, SBC, ABC, skull osteoma, metastases, non-ossifying fibroma, malignant fibrous histocytoma, fibrroid dysplasia, and chordoma were found in 8%, 17%, 21%, 9%, 3%, 4%, 3%, 4%, 3%, 16%, 2%, 1%, 2%, and 3%, respectively, according to the MRI. Conclusion MRI had 100% sensitivityto diagnose the majority of bone tumors, while it had 100% specificity in diagnosing osteosarcoma, SBC and fibrous dysplasia.

MRI, Evaluation, Primary, Secondary,BoneTumours.