Abstract
Soft tissue sarcoma is a heterogeneous group of mesenchymal malignant tumours. They are rare tumours constituting only 1% of all malignancies. Our index patient who has right thigh soft tissue sarcoma with distant metastasis belongs to the tumour age range but has no risk factor. Magnetic resonance imaging (MRI) helped us to adequately characterise the primary tumour and stage the tumour as American Joint Cancer Committee stage IVB. Histology confirmed it as Fibro sarcoma.MRI has superior soft tissue contrast and multi-planar imaging capabilities. These are advantageous to tumour localization and depth assessment which are integral part of the modified staging system. This invariably qualified MRI as the current preferred imaging tool for soft tissue sarcomas.