What is the longest someone has lived with multiple myeloma?

The longest someone has reportedly lived with multiple myeloma is 45 years. The individual, named Richard Rosenthal, was diagnosed with the disease in 1975 at the age of 33. Despite being given only a few months to live at the time of diagnosis, Rosenthal underwent various treatments and therapies over the years, including chemotherapy, stem cell transplants, and experimental drugs. He credits his longevity to a positive attitude, good medical care, and staying active and engaged in life. Rosenthal's case serves as an inspiration to others living with multiple myeloma and has helped researchers better understand the disease and develop new treatment options.