NEW YORK (AFP) ― Top U.S. diplomat Hillary Clinton is suffering from a rare blood clot in a vein in her head but should make a full recovery, doctors said Monday as she spent New Year’s Eve in hospital.

A routine follow-up scan on Sunday revealed “that a right transverse sinus venous thrombosis had formed,” doctors Lisa Bardack, of Mount Kisco Medical Group, and Gigi El-Bayoumi, of George Washington University, said.

They described it as “a clot in the vein that is situated in the space between the brain and the skull behind the right ear.”

But they were also quick to offer reassurances saying in their statement that “it did not result in a stroke, or neurological damage.”

Clinton was admitted to the New York Presbyterian Hospital on Sunday following the discovery and is being treated with blood thinners to dissolve the clot. She will be released “once the medication dose has been established.”

“In all other aspects of her recovery, the secretary is making excellent progress and we are confident she will make a full recovery. She is in good spirits, engaging with her doctors, her family, and her staff,” they added.

The globe-trotting diplomat has not been seen in public after succumbing to a stomach virus on returning from a trip to Europe on Dec. 7, which forced her to cancel a planned visit to North Africa.