Liver Hemangioma on Ultrasound: What Does It Mean?

A liver hemangioma on ultrasound means the scan showed a spot that looks like a hemangioma: a non-cancerous cluster of small blood vessels in the liver. It is the most common benign liver lesion, does not turn into cancer and usually needs no treatment. Depending on how typical it looks and your health background, your clinician may confirm it with MRI or CT.

The spelling 'haemangioma' is the same thing in British English. Reports may also say 'hepatic hemangioma' or 'likely hemangioma'. This guide is for adults; hemangiomas found in babies are a different condition with separate care.

Most hemangiomas are found by chance and never cause symptoms. Complications are rare, but the following need prompt attention.

• Sudden, severe abdominal pain, especially after an injury to the abdomen, or with fainting or feeling very unwell: call your local emergency number. Cleveland Clinic describes rupture with internal bleeding as rare but an emergency.
• Yellowing of the skin or the whites of the eyes (jaundice): get an urgent appointment with a doctor or use your local urgent advice line, as the NHS advises.
• New, persistent pain or fullness in the upper right abdomen, nausea or loss of appetite: book a review rather than waiting for a routine follow-up.

Very common. Cleveland Clinic estimates that about 5% of people have one, and that they are found more often in women and in middle age. Many people have one for life without knowing.

Most are found by chance on an ultrasound, CT or MRI done for another reason, such as abdominal pain, abnormal liver blood tests or a check of the kidneys or gallbladder. Cleveland Clinic gives an average size of about 3 cm. Hemangiomas of 10 cm or more are called 'giant', and these are the ones more likely to cause symptoms.

On ultrasound, a typical hemangioma usually looks bright (the report may say 'hyperechoic'), evenly textured and well defined. The European Association for the Study of the Liver (EASL) guideline says that in a normal liver, a bright lesion like this is very likely to be a hemangioma.

According to EASL, if the lesion is under 3 cm, has all the typical features and the liver is otherwise healthy, ultrasound alone can be enough to make the diagnosis. If any feature is unusual, the report may say 'probable' or 'atypical' instead.

A hemangioma is not cancer, and Cleveland Clinic states that it does not become cancerous. The main question with a new liver spot is whether it really is a hemangioma, not whether a hemangioma will change into something else.

Other liver findings can sometimes look similar, which is why the typical features matter. When imaging is atypical, doctors may investigate further. Cleveland Clinic explains that a hemangioma tends to stay stable over time, whereas a liver cancer usually changes, so comparing with earlier scans can help.

A simple liver cyst is a different, fluid-filled finding that is also common and usually harmless. If your report mentions both, ask which description applies to which spot.

Sometimes. Guidelines differ in emphasis. The American College of Gastroenterology (ACG) 2014 guideline recommends MRI or CT to confirm a hemangioma. The EASL guideline says contrast imaging (contrast-enhanced ultrasound, CT or MRI) is needed in people with a history of cancer or with underlying liver disease, and when ultrasound features are not typical.

With contrast, a hemangioma usually shows a recognisable pattern: contrast first appears in patches around the edge and gradually fills in towards the centre on later images. When imaging shows these typical features, the ACG advises that a liver biopsy should be avoided.

If your report suggests further imaging, ask why. Common reasons include an atypical appearance, a larger size, a past cancer or known liver disease. A request for an MRI does not by itself mean the doctors suspect cancer.

Rarely. The ACG guideline states that no intervention is needed for hemangiomas that cause no symptoms, regardless of size. Cleveland Clinic says only about 10% grow at all, usually slowly.

Follow-up advice varies. EASL says imaging follow-up is not required for a typical hemangioma. Some services still arrange a repeat scan, especially for larger or less typical lesions, to check that it stays the same. Ask your clinician what is planned and why.

Treatment is considered for hemangiomas that cause symptoms, keep growing or lead to complications. Options described by Cleveland Clinic include blocking the blood supply (embolisation) or surgery. EASL advises referral to a specialist team for growth, pressure symptoms or a rare clotting-related problem called Kasabach-Merritt syndrome.

Both the ACG and EASL guidelines say pregnancy and the contraceptive pill are not ruled out for people with a hemangioma. Cleveland Clinic notes that oestrogen may make a hemangioma grow faster, though significant growth during a pregnancy is unlikely.

If you are pregnant, planning a pregnancy or taking hormone therapy and your hemangioma is large, mention it to your clinician. Do not stop a prescribed hormone or contraceptive without advice.

Bring the ultrasound report and any earlier liver scans or blood tests. If you have had cancer or have a known liver condition, make sure the clinician reviewing your scan knows.

• Does my hemangioma look typical, and how big is it?
• Is ultrasound enough, or do I need an MRI or CT to confirm it? Why?
• Is any follow-up scan planned, and who will arrange it?
• Could it explain any symptoms I have, or is it most likely incidental?
• Does my pregnancy plan or hormone use make any difference?
• Which symptoms should make me seek help urgently?

On SameCase, patients and verified doctors share de-identified cases. Reading how others described their liver hemangioma report, any confirmatory scans and their follow-up can help you think of questions for your own appointment. Similar cases cannot diagnose you or predict what will happen to you; use them to prepare for the conversation with your clinician.