PMID: 28516871May 19, 2017Paper

Diagnosis of catastrophic anti-phospholipid syndrome in a patient tested negative for conventional tests

Clinical and Experimental Rheumatology
Fabrizio ContiGuido Valesini

Abstract

Catastrophic antiphospholipid syndrome (CAPS) is a severe variant of APS, characterised by clinical evidence of multiple organ involvement developing over a very short period of time, histopathological evidence of multiple small vessel occlusions and laboratory confirmation of the presence of aPL (lupus anticoagulant and/or anticardiolipin antibodies and/or anti-Beta2-glcyoprotein I antibodies). Here we report a case of a 39-year-old woman patient who developed a CAPS which was negative to the conventional aPL but positive for aPL in thin layer chromatography immunostaining and vimentin/cardiolipin antibodies by ELISA test. The patient was treated with high doses of glucocorticoids, intravenous immunoglobulins plasma exchange and immunoadsorbent apheresis with a significant improvement of the ischaemic lesions of the hands even though the necrosis of the feet progressively worsened. As a result, the patient underwent partial surgical amputation of the feet. To our knowledge, this is the first ever reported case of CAPS diagnosed by means of thin layer chromatography immunostaining and vimentin/cardiolipin antibody ELISA test.

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