recurrent venous thromboembolism as the initial clinical presentation of gastric cancer: a case report

Pulmonary thromboembolism (pte) is a clinically critical disease, misdiagnosis or delayed diagnosis of which can lead to increased rate of mortality. for prevention of recurrence of pte, recognition of its risk factors or underlying diseases is of great importance. pte is common in patients with cancer and has high morbidity and mortality rates. although cancer is a lethal condition, pte accelerates death in these patients. in the current study, we reported the case of a 50-year-old male presenting with dyspnea, pleuritic chest pain, and non-massive hemoptysis indicating pulmonary embolism. anticoagulant therapy was initiated, but after 12 days of treatment, new deep vein thromboses in the left upper and right lower limbs were diagnosed. however, no specific risk factors or laboratory abnormalities were detected. history of weight loss during the recent months encouraged further investigation for ruling out malignancy, which led to diagnosis of gastric adenocarcinoma. he did not have any complaints of gastrointestinal disorders.