WASHINGTON -- A Michigan congressman who chairs a tax committee says doctors have declared him cancer-free following chemotherapy treatments.

U.S. Rep. Dave Camp, R-Midland, announced last summer that he had been diagnosed with non-Hodgkin's lymphoma. He has been undergoing chemotherapy treatments for some months, even as he continued his work on tax reform and the "fiscal cliff".

On Tuesday, the Midland Republican, who was re-elected to his 12th term in office in November,  said in a statement that he is free of cancer.

The 59-year-old chairman of the House Ways and Means Committee says he's "extremely thankful for the excellent treatment." He says he'll have routine medical checks in the months ahead.

Non-Hodgkin's lymphoma is a cancer that begins in the cells of the immune system. Camp says he had large B-cell lymphoma. B-cells are a type of white blood cell that helps fight infections.