"All cancerous tissue was successfully removed and the margins were clear of any residual skin cancer cells," White House physician Kevin O'Connor said in a letter, adding that no further procedures were anticipated.

The surgery took place after a small lesion was found above the first lady's right eye recently during a routine skin cancer screening.

(Reporting by Andreal Shalal and Costas Pitas, writing by Kanishka Singh; editing by Paul Grant)