T Cell Lymphoma More Condition_symptoms And Pictures Does Anyone Know What The Prognosis For Mantle Cell Lymphoma Is?

Does anyone know what the prognosis for Mantle Cell Lymphoma is? - t cell lymphoma more condition_symptoms and pictures

My sister was diagnosed and she started chemotherapy last week. All information can be found on the Internet, is very negative and said that the prospects are good. Does anyone know otherwise? If it is treatable with a good result?