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  • Title: Cutaneous necrosis revealing the coexistence of an antiphospholipid syndrome with acquired protein S deficiency, factor V Leiden and hyperhomocysteinemia.
    Author: Combemale P, Amiral J, Estival JL, Dupin M, Chouvet B, Berruyer M.
    Journal: Eur J Dermatol; 2002; 12(3):278-82. PubMed ID: 11978573.
    Abstract:
    UNLABELLED: We report an exceptional case of cutaneous necrosis due to the coexistence of 4 thrombophilic factors, inherited and acquired. We would like to draw attention to these unrecognized associations. CASE REPORT: A 72-year-old woman was admitted with a 5 month history of necrotic nonhealing, painful ulcer of both legs and recently a purple toe. She had a history of 3 deep venous thromboses of the leg complicated by pulmonary embolism. A skin biopsy of the ulcer and purple toe showed only thrombosis in the dermal vessel. Laboratory findings showed a circulating lupus anticoagulant, positive anticardiolipin antibodies, antinuclear antibodies (1/320 dilution) and an anti Sm. Moreover, activated protein C resistance associated with factor V Leiden mutation and hyperhomocysteinemia was found; protein S was transiently low. With iloprost, oral anticoagulant, vitamin B12 and folic acid, the evolution was good, with healing of ulcer. COMMENTS: cutaneous necrosis can reveal hypercoagulable states, sometimes complex. We find 4 thrombophilic factors in our case, i.e. antiphospholipid antibodies, factor V Leiden, protein S deficiency and hyperhomocysteinemia. This is exceptional but highlights the role of several constitutional and acquired thrombophilic factors in the genesis of thrombosis. Extended protein C pathway disturbances could explain the mechanism that leads to cutaneous necrosis, in this patient, with an antiphospholipid syndrome. This case shows that it is necessary in some circumstances to make a complete hemostatic laboratory search to detect several thrombophilic factors. If they are present they can justify an oral anticoagulant treatment and a familial screening.
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