Vasoatonic headache associated with chronic maxillary sinusitis.
D002908:Chronic Disease; D006261:Headache / Q000209:etiology* / Q000503:physiopathology; D006636:Histamine Release; D006801:Humans; D008297:Male; D008443:Maxillary Sinus; D008875:Middle Aged; D010275:Parasympathetic Nervous System / Q000503:physiopathology; D012852:Sinusitis / Q000150:complications*; D014666:Vasomotor System / Q000503:physiopathology*