Jugular blood clot My neice (27 yr old) is currently in the hospital with a jugular blood clot and after 3 nights there, they have not been able to tell her anything of the cause. Many blood tests have been taken with no clues. She does not smoke. She was spiking fevers of 103 at night...anyone else experience this? It seems the medical community so far is perplexed given her age, etc. Thank you, From: jworwa@comcast.net Story Categories UPDATED STORIES CATEGORIES   Feb. 16 6 Aneurysms May. 19 48 Blood Clots (Venous ... Aug. 28 12 Chronic venous insufficiency Feb. 07 11 Congenital Vascular Malformation ... Mar. 12 2 Hemangiomas Feb. 22 1 Hemorrhoids 0 Hepatic Vein Obstruction, aka ... Feb. 01 2 Incompetent Perforator Veins 0 Ischemia of the lower extremities ... Sep. 26 2 Lymphedema Mar. 23 4 Non-healing wounds Nov. 21 11 Phlebitis Jul. 20 5 Port Wine Stain Apr. 17 1 Raynaud's disease Mar. 01 8 Restless Leg Syndrome Nov. 01 2 Right Ovarian Vein Syndrome Oct. 09 15 Spider veins May. 26 76 Varicose Veins May. 13 7 Venous Leg Ulcers Nov. 08 23 Other