Home

Hemangioma liver

Liver Hemangioma; Symptoms, Treatment & Preventio

  1. A liver hemangioma is a benign (non-cancerous) tumor in the liver that is made up of clusters of blood-filled cavities. Most liver hemangiomas do not cause symptoms, although larger ones can cause poor appetite, nausea and vomiting. Smaller hemangiomas do not need to be treated, but larger hemangiomas may need surgery
  2. If the hemangioma can be easily separated from the liver, your doctor may recommend surgery to remove the mass. Surgery to remove part of the liver, including the hemangioma. In some cases, surgeons may need to remove a portion of your liver along with the hemangioma. Procedures to stop blood flow to the hemangioma
  3. A liver hemangioma is a type of noncancerous (benign) growth in your liver. Your doctor might call it a hepatic hemangioma. The hemangioma, or tumor, is a tangle of blood vessels. It's the most..
  4. A liver hemangioma is a benign (noncancerous) mass that grows in the liver. A liver hemangioma is made up of blood vessels that are tangled and contain blood and is less than 4 cm (1.5 inches) in size. Sometimes liver hemangiomas can be larger than this, or there may be several present in the liver

Liver hemangiomas can be readily diagnosed by ultrasound or multiphase contrast-enhanced helical CT. The indications for surgical resection are progressive abdominal pain in combination with size >5 cm. Observation is justified in patients with minimal or no symptoms, even in patients with giant Hepatic hemangiomas or hepatic venous malformations are the most common benign vascular liver lesions. They are frequently diagnosed as an incidental finding on imaging, and most patients are asymptomatic. From a radiologic perspective, it is important to differentiate hemangiomas from hepatic malignancy

Liver hemangioma - Diagnosis and treatment - Mayo Clini

What Is a Liver Hemangioma? - WebM

Hemangioma Of The Liver Hemangioma of the liver is a benign (noncancerous) mass that grows in the liver and is made up of blood vessels that are tangled and contain blood and is less than 4 cm (1.5 inches) in size. Sometimes they can be larger than this, or there may be several present in the liver Hepatic hemangiomas (also referred to as cavernous hemangiomas because of the cavernous vascular space seen histologically) are the most common benign liver lesion. Hepatic hemangiomas are often solitary but multiple lesions may be present

Atypical Hemangioma looks like Liver Metastasis - Liver

Liver hemangiomas are the most common benign liver tumors and are usually incidental findings. Liver hemangiomas are readily demonstrated by abdominal ultrasonography, computed tomography or magnetic resonance imaging. Giant liver hemangiomas are defined by a diameter larger than 5 cm. In patients w Hepatic haemangiomas or hepatic venous malformations are the most common benign vascular liver lesions. They are frequently diagnosed as an incidental finding on imaging, and most patients are asymptomatic. From a radiologic perspective, it is important to differentiate haemangiomas from hepatic malignancy Liver hemangioma as described earlier is generally harmless. You may not need to make any lifestyle changes at all. However, if you underwent a surgery, then post-operative care must be taken, as liver is one of the most important organs of our body. Also, certain measures can be taken to avoid any other complications related to the liver Liver hemangioma is a benign liver condition that can cause a range of signs and symptoms and, in some cases, affect surrounding organs. Individuals with this condition generally remain asymptomatic, meaning they experience no discernible symptoms. Generally, individuals with a liver hemangioma require no treatment Liver hemangioma is a benign growth of blood vessels in the liver. These are extra blood vessels that group together to form a bunch. These growths are non-cancerous. They are also known as cavernous hemangiomas

Hemangioma Of The Liver Liver Docto

A cluster of malformed blood vessels is known as hemangioma. This can happen anywhere in the body, including the liver, in which case it is known as liver or hepatic hemangioma. In most cases liver hemangiomas are benign and cause no symptoms. They may also vary in size, from ¼ of an inch up to 2 inches (5.08 cm) A subglottic hemangioma is a large mass of blood vessels in the airway, typically below the vocal chords. They often grow for six to 12 months and then start to slowly shrink. It is a serious condition because the mass can obstruct the airway and affect a child's ability to breath. How we care for hemangiomas

Management of liver hemangiomas according to size and

Hemangiomas are known as congenital vascular malformations that can affect almost any organ or tissue, with the liver being the most common intra-abdominal organ to be involved. It is well known that hemangiomas are the most common benign tumours of the liver, and develop in about 4-20% of people, mainly young adult females Infantile hemangiomas are made up of blood vessels that form incorrectly and multiply more than they should. These blood vessels receive signals to grow rapidly early in a baby's life. Most infantile hemangioma will appear at birth or within the first few weeks after birth. Most infantile hemangiomas show some mark or colored patch on the. Hemangiomas of the Liver. A hemangioma is a noncancerous liver tumor composed of a mass of abnormal blood vessels. (See also Overview of Liver Tumors .) In the United States, about 1 to 5% of adults have small hemangiomas that cause no symptoms. These tumors are usually detected only when ultrasonography, computed tomography (CT), or magnetic.

Liver hemangioma is a non cancerous mass formed in the liver. It is developed when networks of blood vessels in the liver starts to tangle with each other. Other terms for this condition are hepatic hemangioma and cavernous hemangioma. Normally, this condition does not show any symptoms In hemangiomas of the liver, tying off of the main blood supply to the hemangioma may be an option Outlook More often than not, a hemangioma is more of a cosmetic concern than a medical one 6 cm liver hemangioma diagnosed via ultrasound and CT Scan with contrast. Discovered while doing abdomen ultrasound for digestive issues. Was previously treated for Lyme Disease (2nd stage), so hard to distinguish lingering effects of Lyme vs. something because of hemangioma. Have been told that hemangioma should not be causing health issues.

Liver Hemangioma is a non-cancerous tumor in the liver. It is made with many clusters of blood vessels. It looks like a tangled mass in the liver. Many Liver Hemangioma does not have any symptoms but in worse cases, it can cause poor appetite, vomiting, and nausea. So, there is no need to treat smaller Liver Hemangioma but larger Liver. A liver hemangioma is a tangled mass of poorly formed blood vessels that occurs in the liver. It is typically benign, and may not even be discovered unless a patient is undergoing a procedure or test for another condition. Most liver hemangiomas can be left alone, but if one should grow large enough to push on nearby organs in the abdomen and. Hepatic hemangiomas are the most common benign tumor of the liver. Classification is based on characteristic histologic features; there should be no significant cytologic atypia or mitotic activity. Vast majority of hemangiomas are asymptomatic and require no intervention; larger lesions (> 5 cm) are more likely to be symptomatic and.

Hepatic hemangioma Radiology Reference Article

Hemangiomas are the most common type of benign hepatic tumor [].They are well-circumscribed masses of blood-filled spaces lined by endothelium on a thin fibrous stroma, and thrombi, calcification, fibrosis, and scarring are variably present Hemangiomas are the most common form of benign liver tumors. They are a mass of abnormal blood vessels. Up to 5 percent of adults in the United States may have small hemangiomas in their liver. Women are more likely than men to develop them. Usually these benign tumors produce no symptoms and do not need to be treated

We actually found my liver hemangioma when I thought I was having a heart attack. Turns out it was a gall bladder attack so when I was 17 weeks pregnant I had my gall bladder removed. I had my first CT scan on my liver in the Fall of 2010 after my pregnancy was done. At the time my hemangioma was already considered giant and was about 6cm if I. MRI or CT scan: This is usually a pretty straight-forward distinction based on a ct or MRI scan.The important point is that the scan has to be ordered as a hemangioma protocol with IV contrast.Hemangiomas usually take up and release IV contrast in a predictable fashion in comparison with liver cancer.Rarely, if there is still a question, the mass can be biopsied without a serious risk for. I have two large liver hemangiomas 5.5cm and another at 8.5cm. I have a 3cm hemangioma and have heard from doctors that it causes no symptoms. This topic is answered by a medical expert I have the exact same symptoms - I have had many tests (including CT, MRI for Abdomen & Back, and Xrays) which showed Liver FNH and Liver Hemangioma which would not cause pain supposedly, as well as 2. May 12, 2006 #1. 2006-05-12T06:19. Ok, I know hemangioma (or recurrent condition) may be rare but someone on the forum must know how the VA evaluates this. I have read enough on non VA sites about what it is. I heard it may be positionally and anatomically considered malignant. Can anyone here help provide insight on this from a VA assessment.

Hemangioma of the liver: Symptoms, causes, and treatmen

  1. hepatic form of the cutaneous rapidly involuting congenital hemangioma, a hypervascular lesion most frequently located on the scalp or extremities and that regresses in an accelerated fashion by 12 to 14 months of age [27,28].Asin cutaneous rapidly involuting congenital hemangioma, focal hepatic hemangioma does not stain positive for Glut-1,
  2. About Liver Hemangioma (Hepatic Hemangioma, Cavernous Hemangioma) Liver hemangioma is a benign (noncancerous) mass or a clump of blood vessels in the liver. This tangle of blood vessels sometimes called a hepatic hemangioma or cavernous hemangioma. Why is it Problematic? There is no evidence to suggest that a liver hemangioma can lead to cancer
  3. have a few hemangiomas on liver went for an ultrasound of gallbladder due to polyps and tech said liver cyst then i heard doppler flow is this cancer? Dr. Luis Villaplana answered. 35 years experience Internal Medicine. UNLIKELY: A liver cyst is a common finding on ultrasound of this organ. It is fluid filled

Benign liver tumours are common and usually without symptoms (asymptomatic). A cyst is an abnormal, fluid-filled balloon or bubblelike structure (sac) that can grow in any part of your body. Liver cysts are mostly congenital, meaning that you have them from birth, or caused by contact with some form of parasite.   Hemangiomas can be mistaken for hypervascular malignancies of the liver or vice versa and can coexist with (and occasionally mimic) other benign and malignant hepatic lesions, including focal nodular hyperplasia, hepatic adenoma, hepatic cysts, hemangioendothelioma, hepatic metastasis, and primary hepatocellular carcinoma Liver hemangioma, which is also known as Hepatic Hemangioma or Cavernous hemangioma is a benign (non-cancerous) tumor which is composed of tangled network of blood vessels. The size of the tumor is about 4cm or 1.5 inches and are mostly asymptomatic Internal hemangiomas in the liver are usually small and do not produce any symptoms. However, liver hemangiomas that are larger than 4 centimeters (cm) or about 1.6 inches across can cause.

Hemangioma - Dog

Hemangioma of the Liver (Hepatic Hemangioma

Hemangioma. A hemangioma is a benign (noncancerous) tumor made up of blood vessels. There are many types of hemangiomas, and they can occur throughout the body, including in skin, muscle, bone, and internal organs. Most hemangiomas occur on the surface of the skin or just beneath it. They often develop on the face and neck, and can vary greatly. Hepatic hemangiomas have been treated with a wide array of therapies. Traditionally, surgical resection and surgical enucleation are the treatments of choice. [ 50] Minimally invasive therapies for hepatic hemangioma include arterial embolization, radiofrequency ablation, and hepatic irradiation Most hepatic hemangiomas are discovered incidentally at the time of testing for unrelated medical problems, most commonly with ultrasound imaging or CT ( computerized tomography ) scanning of the abdomen. Very large hemangiomas can cause symptoms, especially if they are positioned near other organs. Pain, nausea, or enlargement of the liver can.

A cavernous liver hemangioma or hepatic hemangioma is a benign tumour of the liver composed of hepatic endothelial cells. It is the most common liver tumour, and is usually asymptomatic and diagnosed incidentally on radiological imaging. Liver hemangiomas are thought to be congenital in origin I have several hemangiomas in my spleen and liver. Most doctors want to remove the spleen. My largest hemangioma is 9cm. I was told by a new doctor today that the Mayo Clinic has done studies and used a gel substance and injected it into the vein feeding the hemangioma and closed it off and the hemangioma shrinks and goes away over time A liver hemangioma is a type of noncancerous (benign) tumor made of clusters of abnormal blood vessels. Small hemangiomas usually require no treatment and produce no symptoms. In fact, patients with small liver hemangiomas are often unaware of them until the tumors are detected incidentally during tests for other conditions

I have a hepatic hemangioma on the right upper quadrant of my liver. It's 5.3 cm big, the size of an orange, and some cysts on liver and kidneys as well. I have pain that is worsening in my right rib cage and back and now spreads to right lower abdomen, so that I thought I was having an appendicitis attack Cavernous liver hemangioma. H&E stain. Clin. DDx. Hemangioma of the liver, also liver hemangioma and hepatic hemangioma, is a benign vascular tumour of the liver, that may be mistaken for metastatic disease. Hemangiomas, more generally, are dealt with in the hemangioma article lymphangioma, angiokeratoma, lobular capillary hemangioma (pyogenic granuloma). Hemangioma is a very common benign vascular tumour. Hemangiomas of the liver are dealt with in the article liver hemangioma. Anastomosing hemangioma is dealt with in the article anastomosing hemangioma A cavernous liver hemangioma or hepatic hemangioma is a benign tumor of the liver composed of hepatic endothelial cells. It is the most common benign liver tumour, and is usually asymptomatic and diagnosed incidentally on radiological imaging.Liver hemangiomas are thought to be congenital in origin. Several subtypes exist, including the giant hepatic haemangioma, which can cause significant.

Liver Hemangioma. Hepatic hemangiomas are the most common benign liver tumors that occur in children, and based on more recent analysis, they can be classified into three subtypes—focal, multifocal, and diffuse. From: Pediatric Gastrointestinal and Liver Disease (Sixth Edition), 2021. Download as PDF Liver hemangiomas are the most common benign vascular neoplasms of the liver and are often diagnosed incidentally during abdominal surgical procedures or in abdominal imaging studies. Liver hemangioma is qualified giant when its diameter exceeds 5 cm Hepatic sclerosed hemangioma, first reported by Ishii in 1995 [ 1 ], is a rare disease, detected and reported in only 2 out of 1000 cases on autopsy [ 3 ]. We found only 9 cases in PubMed by manual searching for the terms hepatic, sclerosed, hemangioma and hepatic, sclerosing, hemangioma from January 1983 to January 2015

Combination hemangioma: These are located under the skin but have a superficial or cutaneous stain on the skin's surface. Some children have multiple hemangiomas (up to several hundred). Those with more than five are at increased risk for organ involvement; the liver is commonly affected. Some hemangiomas can also affect the airways Hemangiomas are the most common benign liver masses, with an incidence between 2% and 7% in the general population. 1 They are commonly diagnosed as incidental findings on imaging studies or during exploratory surgeries. Hemangiomas measuring 4 cm or larger are considered giants and may produce symptoms Asymptomatic small atypical hemangioma in segment 7 was diagnosed on explant following orthotopic liver transplantation. In contrast to typical cavernous hemangiomas no classic centripetal contrast enhancement is observed. Instead incomplete asymmetric enhancement is seen, only partly following blood pool enhancement Hemangiomas are the most common benign tumors found in the liver, typically asymptomatic, solitary, and incidentally discovered. Although vascular in nature, they rarely bleed. We report a case of a 52-year-old woman with a previously stable hemangioma who presented to our hospital with signs and symptoms indicative of spontaneous rupture. We review the literature, focusing on diagnosis and.

Giant cavernous hemangiomas are a minor subset of hepatic hemangiomas and are considered atypical ( 1 ). The term giant hemangioma is reserved for lesions larger than 5 cm. Hemangiomas are the most common benign tumors of the liver, with a prevalence of upward of 20% ( 1 ). They have a female-to-male predominance of 2-5:1 ( 1 ) D18.03 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2021 edition of ICD-10-CM D18.03 became effective on October 1, 2020. This is the American ICD-10-CM version of D18.03 - other international versions of ICD-10 D18.03 may differ. All neoplasms are classified in this chapter.

Liver Atlas: Diagnosis: AdenomaI have hepatomegaly with grade-ii fatty changes in my

Imaging of Atypical Hemangiomas of the Liver with

Introduction. Hepatic cavernous hemangioma accounts for 73% of all benign liver tumors 1 with a frequency of 0.4-7.3% 2 at autopsy and is the second most common tumor seen in the liver after metastases. 3 These lesions consist of large vascular spaces lined by a single layer of endothelial cells and several authors agree that this vascular tumour is a benign, congenital haematoma or tissue. Hemangiomas. Hemangiomas are usually small and asymptomatic; they occur in 1 to 5% of adults. Symptoms are more likely if they are > 4 cm; symptoms include discomfort, fullness, and, less often, anorexia, nausea, early satiety, and pain secondary to bleeding or thrombosis. These tumors often have a characteristic highly vascular appearance A hemangioma is typically a benign lesion that is not associated with liver cancer. Typically, they can be observed. However, if there is rapid growth - or if the lesion grows greater than 5cm, then removal can be considered. You can consider a CT scan or MRI for further definition of the lesion Hepatic hemangioma is a benign growth in the liver made up of widened blood vessels. Hepatic hemangioma is a very common liver tumor. Women are usually more affected than men, but it may affect infants as well. The size of hepatic hemangioma is usually less than 1 cm in diameter Indeed, hemangiomas or liver cancer are possible causes for the ultrasound findings. I agree with the MRI to further evaluate the cause. This test is more detailed than an ultrasound and should be able to rule out liver cancer. Light stools may be due to biliary obstruction. Obtaining an MRCP can be done to exclude any blockages

Hemangioma thrombocytopenia syndrome is characterized by profound thrombocytopenia in association with two rare vascular tumors: kaposiform hemangioendotheliomas and tufted angiomas. The profound thrombocytopenia can cause life threatening bleeding and progress to a disseminated coagulopathy in patients with these tumors Hepatic hemangioma is the most common type of liver lesion, consisting of clusters of small blood vessels. Around 20% of the general population have hemangiomas.   They don't typically cause symptoms, so they can be left untreated

A Large Liver Mass With Acute Hemorrhage | HepatobiliaryLiver Atlas: Diagnosis: Steatosis / Steatohepatitis

ive been diagnosed in the last 2 years with type 1.5 diabetes and liver hemangiomas. in the last 6 mos, ive had 2 more tumors appear that werent hemangiomas. ive had ct scan and mri in last 2 weeks. Hemangiomas are the most common benign tumors of the liver. Although they are usually asymptomatic, extremely large lesions can produce compressive symptoms, and spontaneous thrombosis or hemorrhage may cause pain. Their characteristic pathologic feature is their large blood volume. Because of their prevalence, hepatic hemangiomas are often. Hepatic hemangioma is the most common benign tumor occurring in the liver. Hemangioma is a vascular tumor that passes through three stages of development: angiogenesis, regression, and involution [].The diagnosis is generally secured on radiologic examination with magnetic resonance imaging (MRI) is the most sensitive and specific imaging tool [] Hepatic sclerosing hemangioma, a very rare benign tumor, is characterized by fibrosis and hyalinization occurring in association with degeneration of a hepatic cavernous hemangioma [].Even with recent developments in radiological modalities, it is difficult to diagnose preoperatively because it is benign and extremely rare, and its radiological features resemble those of other liver tumors. Liver hemangiomas are most common during the third through fifth decades of life and are more common in women than in men. Liver hemangiomas tend to grow slowly, if at all, but can grow.

Liver Atlas: Case 154: Angiosarcoma: Ruptured metastases

Liver Hemangiomas. littlejulie. Posts: 311. Joined: Mar 2004. Sep 19, 2005 - 11:17 am. I need positive thoughts and stories please! My mom has been through a CT Scan and a liver ultrasound which found a 'spot' on her liver. We thought it was confirmed not to be cancer but it hasn't A hemangioma is a common vascular birthmark, made of extra blood vessels in the skin. It is a benign (non-cancerous) growth. Hemangiomas may occur anywhere on the body. There are three main types of hemangioma: superficial (on the surface of the skin), deep (under the skin) and mixed The first two common benign hepatic nodules are hepatic cyst and hepatic hemangioma. 1,2 By nature, hepatic cyst contains fluid with protein but hepatic hemangioma contains vascular structures with tortuous and variation in sizes. Most of these conditions are free of symptom, except for some occasions; hemangioma may occur rupture causing internal hemorrhage

Hemangioma Of The Liver - Dr Sandra Cabot M

Liver hemangiomas are commonly the most frequent benign lesion of the liver. They are generally smaller, asymptomatic and diagnosed incidentally in imaging studies. A liverhemangioma is qualified giant when it has a size larger than 5cm. Asymptomatic and non-complicated giant liver are managed conservatively by observation. However, lesion with incapacitating symptoms or complications is. Hemangioma is the most common primary benign mass of the liver with a prevalence up to 20% in man and woman. It is made of proliferation of blood vessels (frequently dilated) and supported by connective tissue septa. Essentially, it is a sponge of blood vessels located within the liver. Hemangioma is fed by a network of artery within the liver A hepatic hemangioma is the most common type of liver mass that is not caused by cancer. It may be a birth defect. Hepatic hemangiomas can occur at any time. They are most common in people in their 30s to 50s. Women get these masses more often than men. The masses are often bigger in size Internal hemangiomas (referred to as visceral) occur in the liver, intestines, airway and brain. Infants who have what is referred to as hemangiomatosis ( multiple hemangiomas) are suspect for internal lesions. When an infant has more than 3 hemangiomas, an ultrasound should be done of the entire body to rule out internal lesions

UpToDat

Hepatic hemangiomas are the most common benign hepatic tumor. Current guidelines recommend surveillance imaging and reserving surgical intervention for symptomatic patients with giant liver hemangiomas (>5 cm). We present the case of a patient with a rapidly enlarging giant hepatic hemangioma initially managed by surveillance. During her observation period, she developed weight loss. A liver hemangioma is a type of hepatic tumor. However, it is considered a benign (i.e., non-cancerous) tumor that, in itself, does not pose a serious risk of mortality nor in most cases a serious health risk unless it becomes especially large.Liver hemangioma is found in some seven percent of people who are otherwise healthy. About six times as many women have the disease as men Infantile hemangiomas (IHs) occur in as many as 5% of infants, making them the most common benign tumor of infancy. Most IHs are small, innocuous, self-resolving, and require no treatment. However, because of their size or location, a significant minority of IHs are potentially problematic. These include IHs that may cause permanent scarring and disfigurement (eg, facial IHs), hepatic or. We report a rare case of capillary hemangioma of the liver in an adult. The patient was a 55-year-old man, admitted for investigation of a hepatic tumor. The tumor was seen as a hypoechoic mass with a peripheral hypoechoic ring on ultrasonography. Computed tomography (CT) showed an enhancement pattern different from that of hepatocellular carcinoma (HCC) or cavernous hemangioma.

Management of giant liver hemangiomas: an updat

Congenital hemangiomas are most often found in head and neck area or the limbs. They may also occur on the trunk. Inside the body, they are most often found in the liver. These tumors can be flat or look like raised growths from the skin. They are typically blue-purplish in color Hemangiomas located over the lower back and spine can be linked with spinal defects. Hemangiomas involving the genital area can be connected to pelvic and urinary system issues. When a person has multiple skin hemangiomas, he or she may also have hemangiomas of the liver. A liver ultrasound may be needed to find out how much the liver is involved Living with hemangiomas and vascular malformations. Hemangiomas may grow until your child is about 12 months of age. Then they start to shrink. In many cases, they will go away without treatment. Other hemangiomas need to be treated. These should be treated by a craniofacial doctor. This is a specialist in diagnosing and treating head and face. Liver hemangioma or cavernous hemangioma is a presumably congenital growth that is benign, consisting of a large cavity with a generous supply of arterial blood. In most people, the condition remains unnoticed causing no particular signs or symptoms. Liver Hemangioma (Liver Cavernoma): Read more about Symptoms, Diagnosis, Treatment, Complications, Causes and Prognosis

Hepatic haemangioma Radiology Reference Article

If you ask a room full of hepatic surgeons and interventional radiologists (IRs) how we should treat symptomatic liver hemangiomas, most will likely say: surgery, surgery, surgery. Of course, symptoms, the performance status, co-morbidities and age of the patient, lesion size and location will be essential aspects to consider before surgery A liver that has been burdened or damaged by a liver hemangioma may not be able to store enough vitamins and minerals, so include additional ones in your diet. Limit the amount of protein and sodium you consume. Protein is harder for the liver to process, and excess sodium can cause fluid build-up in the abdominal cavity

FPnotebook.com is a rapid access, point-of-care medical reference for primary care and emergency clinicians. Started in 1995, this collection now contains 6963 interlinked topic pages divided into a tree of 31 specialty books and 737 chapters Liver hemangiomas « Back to Listing Description: A small echogenic well-defined mass is seen in the right lobe of the liver. Caption: Transverse scan of the right lobe of liver at a different level. Description: Another well-defined highly echogenic mass is. Liver hemangioma is a medical condition that is characterized by the formation of a hemangioma (a non-cancerous lump) in the liver. In people affected by this condition, an abnormal collection of blood vessels forms a benign mass (lump) in the liver. This lump comprises tangled blood vessels that depend on the hepatic artery for blood supply