Pennsylvania Sen. Arlen Specter's cancer has returned.
The five-time Republican said in a statement released by his office Tuesday that he was diagnosed with an early recurrence of Hodgkin's disease, which is a cancer of the lymph system.
Specter, 78, underwent treatment for the same type of cancer in 2005 and was later given a clean bill of health.
The statement said that the cancer was revealed in a medical scan but that he has no symptoms.
"I was surprised by the PET scan findings because I have been feeling so good," Specter said in the statement.
"I consider this just another bump on the road to a successful recovery from Hodgkin's, from which I've been symptom free for three years."
In his recent book, "Never Give In: Battling Cancer in the Senate," Specter credited hard work with getting him through the cancer treatments that left him bald.
The statement released by his office said the diagnosis was made based on a routine follow-up scan, which showed small lymph nodes in his chest and abdomen. A follow-up biopsy of one of the chest lymph nodes was positive for recurrence.
Specter said he would continue his normal duties — just as he did three years ago.