RESUMO
Introduction: Pancreatic cancer is a deadly type of cancer with few symptoms until metastasis. It poses a high risk of cancer-associated thrombosis. Case presentation: A 73-year-old male presented with fatigue, shortness of breath, weight loss since 9 months, and blood clots recently in his legs. Chest radiography revealed fluid accumulation in pleural and pericardial cavities. Later, a fluid examination revealed the presence of malignant cells in the pericardial fluid. After immunological tests and an upper gastrointestinal endoscopy were performed, a pancreatic tumour was suspected. The patient was administered anticoagulant treatment and palliative care, which resulted in improvement after one month. Discussion: Pancreatic adenocarcinoma is a highly aggressive cancer with a strong tendency to metastasize, leading to pericardial and pleural effusion, thrombophlebitis, and poor prognosis. Conclusion: This case indicates that venous thrombosis, pleural and pericardial effusions could be symptoms related to a pancreatic tumour.