Lautenberg, 86, had been in the hospital since Monday, undergoing treatment for a bleeding ulcer.
According to a statement from the senator's oncologist obtained by nj.com, the senator is expected to receive treatment and return to work:
We expect a full and complete recovery for Senator Lautenberg. The senator will be treated with chemotherapy administered approximately every three weeks. We anticipate that he will receive between six and eight treatments, and in between treatments, the senator is expected to be back at work in the Senate.