question: my father age 62yrs, height 177cm,weight-70kgs,14*13cm lobulated large mass inRt gluteal region extending into intermuscle fat plane seen in MRI(spine) tata biopsy report WD liposarcoma/Atypical lipomatus tumor,dr suggest before surgyer computerised stress test this test report positive dr suggest blockeg in heart so suggest angiogarphy se blockeg