A 67-year-old Jewish male born in Bulgaria was admitted because of progressive swelling of the abdomen and both legs. The patient gave a history of recurrent orogenital ulceration, arthralgia and pustular dermatitis for the past 10 years. The relevant physical examination revealed severe oedema of both legs with trophic skin changes and ulcerating stasis dermatitis. He had marked distension of the superficial abdominal veins. There was no evidence of liver disease or ascites. Routine laboratory tests as well as barium examination of the gastrointestinal tract, a chest radiograph and a liver and spleen scan were all normal. An ultrasound examination (Fig. 1) and a CT scan (Fig. 2) of the upper abdomen were performed and are illustrated. What is the clinical diagnosis and what do the investigations show? Since Behcet in 1937 described a triad of orogenital ulceration and ocular lesions, a number of additional features have been recognised as part of the complex now known as Behcet's syndrome (Chajek and Fai...