Fine Needle Aspiration Cytology is a commonly used procedure in diagnostic pathology. It is also used for diagnosing bone and soft tissue swellings as a primary tool in early stage of the lesion. But there are only a few studies which are related with role of FNAC in bony lesions in paediatric and adolescence age group. A total 75 cases of 0-21years age were studied of which 46.7% were malignant bone tumours (Group-1), 18.7% were benign bony lesions excluding giant cell lesions (Group- 2), 13.3% were benign giant cell lesions (Group-3) and 21.3% were inflammatory lesions (Group-4). It was found that FNAC was conclusive in 94.4% in Group-1, 71.4% in Group-2, 80% in Group-3 and 93.7% in Group-4. FNAC is an important tool for diagnosis of bony lesions, and found to be more conclusive in malignant bony lesions.

Key words : bone tumours, cytology