(CNN) New Jersey Gov. Phil Murphy announced Saturday that he has a tumor on his kidney and will undergo surgery to remove it in March.

"I've got a tumor on my left kidney and will undergo a partial nephrectomy in early March to remove it. The prognosis is very good and I'm profoundly grateful to my doctors for detecting the tumor early," Murphy wrote on Twitter.

"Over 50,000 New Jerseyans will hear the words 'you have cancer' this year, so I'm far from alone here," he wrote.

Murphy's doctor had discovered a 3-centimeter-wide tumor on his left kidney during a recent checkup, the governor's communications director confirmed to CNN in a statement.

"His doctor's prognosis is that this is fully treatable since the tumor was discovered early," said Mahen Gunaratna, the governor's spokesman.

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