Red Sox starter Clay Buchholz is in stable condition and remained hospitalized Tuesday, when the team revealed the right-hander has esophagitis.

"Clay Buchholz has esophagitis, which led to an erosion of the esophagus and an associated gastrointestinal bleed," the club said in a statement. "He has been evaluated and observed at Mass General Hospital. Clay is doing well and is expected to make a full recovery."

A Red Sox source who talked with Buchholz did not expect the absence to be months-long and said the right-hander was eager to get out of the hospital.

Buchholz went to the 15-day disabled list on Sunday. Whether he'd need more time than away was "something we're dealing with every day," manager Bobby Valentine said.