US President Barack Obama has had a persistent sore throat, and has briefly visited a hospital for tests, the White House says.
Mr Obama had experienced a sore throat over “the past couple weeks”, which appeared to be caused by acid reflux, his doctor said.
Mr Obama had a fibre optic exam, followed by a CT scan, on Saturday.
Acid reflux, where stomach acid leaks up the throat, is a common condition and is not considered serious.
The initial fibre optic exam “revealed soft tissue swelling in the posterior throat”, Mr Obama’s doctor, Ronny L Jackson, said in a statement.
Dr Jackson said he decided “further evaluation with a routine CT (computerised tomography) scan was prudent”.