Background: Among the soft tissue sarcomas, Liposarcoma is the second most common malignant tumour in adults1-3. Pleomorphic liposarcoma is a variant of liposarcoma and is characterized by pleomorphic lipoblasts. It occurs more common in males than females2-7. Case Presentation: A 62 year old Male presented with a mass in the upper 1/3rd of left thigh. Computed tomography showed tumour showing invasion. Biopsy was taken and histopathology revealed Pleomorphic liposarcoma. Conclusion: Pleomorphic liposarcoma is the rare malignant tumour with high grade as well as high recurrence rate. But the prognosis of this patient is very poor. On the treatment point of view, many mode has been tried but yet the final modality of treatment is still controversial. The histopathological diagnosis revealed the final diagnosis. Hence, any soft tissue mass should not be neglected as benign and to be evaluated for sarcoma. Key words: Pleomorphic liposarcoma.