Business magnate Warren Buffett revealed to the media that he was diagnosed with prostate cancer.

According to reports, the 81-year-old billionaire investor and philanthropist announced the news of his prostate cancer in a statement to Berkshire Hathaway shareholders on Tuesday. In his letter, Warren Buffett says he feels “great” and stresses that his doctors have assured him that his prostate cancer, which he learned of last Wednesday, is “not life-threatening or even debilitating in any meaningful way.”

Warren Buffett, the world’s third-richest person said that the prostate cancer, which is at an early stage, was discovered because his PSA levels jumped in a recent checkup, leading his doctors to conduct a biopsy. Warren Buffett said he will begin a two-month radiation program in mid-July, and that though his travel schedule may be restricted his usual routine should be otherwise unaffected. There is plenty of reason to hope for the best, as the five-year survival rate for the diagnosis of Warren Buffett is nearly 100%, according to the American Cancer Society.

The letter of Warren Buffett revealing his prostate cancer can be read below:

“This is to let you know that I have been diagnosed with stage I prostate cancer. The good news is that I’ve been told by my doctors that my condition is not remotely life-threatening or even debilitating in any meaningful way. I received my diagnosis last Wednesday. I then had a CAT scan and a bone scan on Thursday, followed by an MRI today. These tests showed no incidence of cancer elsewhere in my body.

“My doctors and I have decided on a two-month treatment of daily radiation to begin in mid-July. This regimen will restrict my travel during that period, but will not otherwise change my daily routine.”

“I feel great — as if I were in my normal excellent health — and my energy level is 100 percent. I discovered the cancer because my PSA level (an indicator my doctors had regularly checked for many years) recently jumped beyond its normal elevation and a biopsy seemed warranted.

“I will let shareholders know immediately should my health situation change. Eventually, of course, it will; but I believe that day is a long way off.”