NEW YORK - Top US 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 December 7, which forced her to cancel a planned visit to North Africa.
It's a rare absence for the most popular member of President Barack Obama's cabinet, who has been a highly-visible and loyal supporter of his foreign policy agenda, traveling almost a million miles in her four years in office.
A Gallup poll released Monday showed Clinton again topping an annual list of the woman most admired by Americans, winning support from 21 per cent of those surveyed. It is the 17th time she has topped the list, a landmark for Gallup.
But Clinton, 65, has made it clear she intends to step down in the coming weeks, once Senator John Kerry, tapped by President Barack Obama to replace her, is confirmed by the Senate.