Nonbacterial thrombotic endocarditis as the initial presentation of prostate cancer - a case report

Abstract

Nonbacterial thrombotic endocarditis (NBTE) refers to noninfectious vegetations of the heart valves. It is commonly associated with malignancy and autoimmune diseases like systemic lupus erythematosus, Rheumatoid arthritis. Herein, we present Non-bacterial thrombotic endocarditis and Disseminated intravascular coagulation as the initial manifestations of prostate cancer. A 50-yearold gentleman, known case of hypertension and diabetes, presented with a history of recurrent ischaemic strokes, STEMI and a recent diagnosis of infective endocarditis. He had been taking antibiotics for the past 20 days without any improvement. Negative blood cultures in the presence of vegetations on repeat echocardiography led to a suspicion of NBTE. Laboratory investigations were suggestive of Disseminated intravascular coagulation. CT abdomen and pelvis demonstrated enlarged prostate with enlarged pelvic lymph nodes. Prostate specific antigen was raised at more than 100ng/ml. A bone scan showed extensive metastasis. The patient was started on GnRH analogue and bicalutamide. His Disseminated intravascular coagulation resolved and he was subsequently started on anticoagulants. The valvular lesions diminished without any residual dysfunction.