Kevin Daly is seen with his wife, Rachelle, in a screen shot from an interview on NBC Nightly News.

The beer belly a Hoboken man had been carrying for years wasn't beer, after all.

Instead, a shocked Kevin Daly found that it was a 30-pound tumor.

Daly, 63, who isn't even a beer drinker, realized something was wrong when he lost 34 pounds after open heart surgery in 2015, but not an ounce from his protruding stomach, multiple media outlets have reported.

The financial planner, who otherwise has been the picture of health, convinced his doctor to perform a CAT scan, which led to the discovery of a massive cancerous mass in his abdomen.

The tumor, identified as liposarcoma, had likely been growing for 10 to 15 years, but it apparently hadn't spread and did not affect Daly's health. The tumor was removed in December, and along with it a kidney that had been enveloped by the tumor.

According to the Mayo Clinic, liposarcoma is a rare type of cancer that begins in the fat cells, with most cases occurring in the muscles of the limbs or in the abdomen.

"Everyone was telling me you're in your 60s, low testosterone ... " Daly told CBS News.

But Daly knew he was athletic and in good shape, so something had to be wrong.

'I thought they literally left stuffing and tools in me from surgery,' Daly told the New York Daily News, referring to the 2015 surgery.