[Coagulopathy resulting from lupus anticoagulant antibodies as a paraneoplastic phenomenon in renal cell carcinoma relapse].

Lupus anticoagulant syndrome (LAS) is a form of coagulopathy with protracted PTT and an elevated risk of thromboembolic events, which occasionally occurs as a paraneoplastic phenomen in the presence of tumors. It is diagnosed by specific coagulation tests that identify lupus anticoagulant antibodies. We present the case of a 57-year-old woman with a coagulopathy caused by lupus anticoagulant antibodies as a paraneoplastic phenomenon in the course of a relapse of clear cell renal cell carcinoma in the area of the ipsilateral adrenal gland 18 months after tumor nephrectomy. After adrenalectomy with concomitant administration of low-molecular-weight heparin the PTT became normal and the diagnostic tests for lupus anticoagulant antibodies became negative.