<s>[INST] Hello Dr My father is suffering from Liver problem since a monthCT scan taken yesterday shows the lesions in liver about 10 cm x 5 cmBut clinically he does not show any symptomsCondition is very normalDr here Gastroenterologist tells me that he is suffering from carcinoma.Please suggest [/INST] Hi, Thanks for writing in. It is important to know in detail about the CT scan findings. There are conditions like cancer which can appear as 10 x 5 cm lesions in liver. However, this requires confirmation by tissue testing. This can be done by FNAC or biopsy. In this technique cells from the probable tumor are taken out using a needle and seen under the microscope. Under the microscope, we can know the features of cancer and if it is one. Many patients look normal from outside even with large tumor in the liver. Even liver function tests are normal and patient is unaware of the condition. The liver is an organ which regenerates its function and even with the cancer it is possible that the cells in rest of the liver are functioning properly. Please get your father tested for cancer by doing FNAC or biopsy at the earliest and if cancer is confirmed then discuss treatment at a good cancer center. If he has only one lesion in liver then treatment will be more favorable. Please do not worry. </s>