Can cancer be diagnosed without pathology?

Cancer is usually caused by invasion of tissues or organs by cancer cells. It is mainly determined by tumor marker examination, pathological biopsy and other methods combined with clinical manifestations. If the patient is in the early stage of cancer, the results of tumor marker examination are relatively unstable, and the symptoms are not obvious enough at this time, so the possibility of cancer is relatively low if it is not confirmed by pathology.

After the patient has general weakness, loss of appetite and other manifestations, pathological biopsy, CT, MRI and other examinations should be improved in time according to the doctor's advice, which is helpful for early detection and early treatment.