Department of Internal Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
In this report, we describe a 48-year old non-smoker man who presented with dyspnea, light headedness, plethoric facies, neck swelling and swollen collateral veins on the front of the chest wall after extracting his molar tooth due to dental caries and tooth pain. Right internal jugular vein thrombosis was seen on the neck CT angiography. Lemierre's disease was suspected and systemic antibiotics in addition to anticoagulant were started. Two months later the patient presented with characteristic genital and oral aphthous ulcers. A final diagnosis of Behçet vasculitis was made and the patient received high dose of immunosuppressive therapy. Dental extraction in Behçet disease may cause the disease flare up and large vessel thrombosis.