If an examination of the liver reveals a significant shadow, it may be either a benign or a malignant lesion.
Patients with benign disease usually have no clinical symptoms, such as hepatic cysts, which can be detected by ultrasound or CT of the liver as cystic occupying lesions with smooth margins and are considered to be associated with congenital bile duct dilatation, or if the cyst is small and the patient has no clinical symptoms, the cyst will gradually increase in size and compress the adjacent bile ducts or organs, manifesting as abdominal pain and distention, and requiring surgery if necessary.
It may be a hemangioma. Enhanced CT examination, after contrast injection, may reveal a fast-in and slow-out manifestation of contrast, which may also appear as a shadow under ultrasound, a round-like lesion that can be followed and observed regularly.
Malignant tumors of the liver, including primary hepatocellular carcinoma as well as metastatic carcinoma, patients will present with significant right upper abdominal pain, loss of appetite, and weight loss. The patient is also prone to ascites in the later stages and is prone to abnormal liver function. Enhanced CT examinations can show a fast-in, fast-out presentation after contrast injection, and ultrasound can show a low-density image and a marked increase in lab tests for methemoglobin.
B ultrasound specifically includes primary and metastatic hepatocellular carcinoma, and patients tend to show weakness and weight loss.