Hello - my husband has peripheral nerve sheath sarcoma and we have been fighting for 3 years. Sarcomas are very sneaky cancers and in our situation, 6 weeks is the equivalent to a lifetime. I highly recommend you get a second opinion, preferably at a sarcoma center and choose to take control of your fight. There are 8 primary sarcoma centers in the US. We go to Houston Texas to MD Anderson and we have been very pleased with our care and the level at concern they give to our disease. I will pray for you and if I can help, please let me know. Good Luck!