Is portal vein embolus cancer embolus

If

the patient suddenly has abnormal symptoms such as weight loss, fever of unknown cause, lymph node enlargement, local palpable mass, serum tumor marker test results are higher than normal range, and histological examination results show that there are cancer cells in the body, then portal vein emboli are usually cancer emboli. If the patient has not experienced the above abnormal symptoms recently, the serum tumor markers are within the normal range, and no cancer cells are found in the body by histological examination, it is generally not cancer thrombus at this time, which may be caused by cholecystitis, lymphadenitis, pancreatitis and other diseases, resulting in local blood flow slowing down and thrombosis.