title: An unusual factor-X inhibitor in leprosy.
abstract: Two cases of Hansen disease demonstrating a lupus-like inhibitor directed against the activation of coagulation factor X are described. Each case showed factor-X activity markedly depressed by an inhibitor when measured in one assay system; yet normal levels were measured by three alternate factor-X assay systems.
mesh_terms: D000293:Adolescent; D000328:Adult; D001777:Blood Coagulation; D005170:Factor X / Q000037:antagonists & inhibitors*; D005260:Female; D006801:Humans; D007918:Leprosy / Q000097:blood* / Q000503:physiopathology; D008297:Male
chemical_list: D005170:Factor X