What is the rare sarcoma cancer that singer Cat Janice died of?

Singer Cat Janice died of an extremely rare sarcoma cancer at the age of 31, two years after being declared cancer-free. Cat was diagnosed with sarcoma in 2022 and underwent surgery, chemotherapy, and radiation for treatment. Sarcoma is a malignant tumour that develops in bone and connective tissue like fat, blood vessel and nerves that surrounds bones and joints.