Study of the morphological pattern of non-neoplastic and neoplastic bone lesions-a 5 year study

Morphological pattern, clinical presentation and distribution according to age, sex and site of 84 cases of non-neoplastic and neoplastic bone lesions were studied over a period of five years (Retrospective period of 4 years and prospective period of one year). Maximum number of patients were in the age group of 11–30 years. Males were more frequently affected than female, the male to female ratio being 1.9: 1. Femur was the most common involved site followed by tibia. Pain/tenderness was the most common clinical feature. Chronic non-specific osteomyelitis was the most common bone lesion (19%) of all the bone pathologies. Osteochondroma was the most common benign bone tumour (14.2%). Metastatic bone tumour was the most common malignant bone lesion (7.1%), while osteosarcoma was the most common primary malignant bone tumour (3.6%). The ratio of benign to malignant bone tumours was 1.8: 1. The percentage of tumour like lesions was 50%, while benign bone tumours were 32.1% and malignant bone tumours were 17.86%.