Goldman Sachs' Lloyd Blankfein to 'Work Substantially' Through Cancer Treatment

Goldman Sachs CEO Lloyd Blankfein announced that he has cancer, but said he plans to "work substantially" through his chemotherapy treatment.

Blankfein, who turned 61 last week, explained that late this summer he was "not feeling well" for several weeks and recently had a biopsy. He then learned he had lymphoma, which is cancer of the lymphatic system, or the body's disease-fighting network, according to the Mayo Clinic.

"Fortunately, my form of lymphoma is highly curable and my doctors' and my own expectation is that I will be cured," Blankfein wrote in a note to his colleagues, clients and shareholders.

Blankfein did not note the stage of his cancer. The Harvard Law School graduate has been chief executive and chairman of the investment bank since 2006.

"My treatment plan will include chemotherapy over the next several months in New York," Blankfein wrote. "My doctors have advised me that during the treatment, I will be able to work substantially as normal, leading the firm. I will, however, reduce some of my previously planned travel during the treatment period."