dear editor, a 35-year-old man presented with severe headache and left sided hemiparesis since one day prior to admission. he reported frequent bouts of oral and genital aphthous ulcers, an attack of deep venous thrombosis of left lower extremity, one episode of right knee arthritis, and several attacks of headache, neck rigidity, and fever. he had been a victim of mustard-gas poisoning at th...
