liver demonstrates mild diffuse hepatic steatosis portal vein in patient

by Prof. Joseph Champlin 4 min read

What Is Diffuse Hepatic Steatosis? | Fatty Liver Disease

13 hours ago Aug 06, 2021 · Commonly, diffuse hepatic steatosis is indicative of fatty liver disease. Fatty liver disease means that you have excess fatty acids in your liver. Medically, your liver must be at least 5% fat to meet the criteria for a diagnosis of fatty liver disease. Fatty liver disease can be classified as either nonalcoholic or alcoholic. >> Go To The Portal


If you have been told that you have diffuse hepatic steatosis, this indicates that you have fatty infiltration of the liver. The term “diffuse” describes the distribution pattern of fat within the liver. When fat particles are widely dispersed throughout the liver, this finding is called diffuse hepatic steatosis.

Full Answer

What are the causes and symptoms of mild hepatomegaly?

Aug 06, 2021 · Commonly, diffuse hepatic steatosis is indicative of fatty liver disease. Fatty liver disease means that you have excess fatty acids in your liver. Medically, your liver must be at least 5% fat to meet the criteria for a diagnosis of fatty liver disease. Fatty liver disease can be classified as either nonalcoholic or alcoholic.

What does diffused hepatic steatosis mean?

Mild steatosis was defined by a liver echogenicity moderately greater than the right kidney with slight decreased visibility of the intrahepatic vessel walls and decreased reflectivity of the hemidiaphragm.

What does mild hepatomegaly mean?

Jul 14, 2008 · The majority of patients with steatosis (78%) have mild steatosis affecting less than 30% of hepatocytes. Thus, steatosis occurs more frequently in patients with chronic hepatitis C (55%) than in the general population (20%-30%) of adults in the Western world. Macrovesicular steatosis is found in the periportal region of the liver-different from the …

What is mild hepatomegaly with fatty infiltration?

Diffuse increased echogenicity of the liver parenchyma in keeping with mild hepatic steatosis. Liver contours are smooth and there are no focal hepatic lesions. Portal vein is patent and has anterograde flow. Normal gallbladder and biliary tree. Normal Spleen.

What does mild diffuse hepatic steatosis mean?

Mild steatosis was defined by a liver echogenicity moderately greater than the right kidney with slight decreased visibility of the intrahepatic vessel walls and decreased reflectivity of the hemidiaphragm.

What is diffuse hepatic steatosis of the liver?

Pathology. Hepatic steatosis is due to the abnormal accumulation of lipids, particularly triglycerides within hepatocytes 3,4. These are found in both small and large vesicles. Macroscopically, the liver is enlarged, yellow and greasy. Steatosis can lead to fibrosis and cirrhosis.23 Mar 2022

Is diffuse hepatic steatosis serious?

Hepatic steatosis is a reversible condition in which large vacuoles of triglyceride fat accumulate in the liver cells, causing nonspecific inflammation. Most people with this condition experience few, if any, symptoms, and it does not usually lead to scarring or serious liver damage.

What causes mild diffuse hepatic steatosis?

Hepatic steatosis is caused by imbalance between the delivery of fat in the liver and its subsequent secretion or metabolism.

How is mild hepatic steatosis treated?

Usually the first line of treatment is to lose weight. It helps reduce fat, inflammation, and scarring in your liver. Losing just 3% to 5% of your body weight can cut down on how much fat is in your liver. Weight loss surgery is also an option if you have a lot to lose.4 Nov 2021

What are the 3 signs of a fatty liver?

SymptomsAbdominal swelling (ascites)Enlarged blood vessels just beneath the skin's surface.Enlarged spleen.Red palms.Yellowing of the skin and eyes (jaundice)22 Sept 2021

What does mild hepatomegaly mean?

Summary. Hepatomegaly is the medical term for an enlarged liver. It is a symptom of disease, not a disease in itself. Some conditions that can cause hepatomegaly include fatty liver diseases, alcohol use disorder, hepatitis, and cancer.29 Jun 2020

What is the fastest way to cure a fatty liver?

You can:Lose weight. If you're overweight or obese, reduce the number of calories you eat each day and increase your physical activity in order to lose weight. ... Choose a healthy diet. ... Exercise and be more active. ... Control your diabetes. ... Lower your cholesterol. ... Protect your liver.22 Sept 2021

Can you drink again after liver damage?

If you have fatty liver disease, the damage may be reversed if you abstain from alcohol for at least 2 weeks. After this point, it's usually safe to start drinking again if you stick to the NHS guidelines on alcohol consumption.

Can hepatic steatosis be cured?

The good news is that fatty liver disease can be reversed—and even cured—if patients take action, including a 10% sustained loss in body weight.14 Aug 2019

Should I be worried about hepatic steatosis?

Fatty liver disease is a common condition caused by the storage of extra fat in the liver. Most people have no symptoms, and it doesn't cause serious problems for them. In some cases, though, it can lead to liver damage. The good news is you can often prevent or even reverse fatty liver disease with lifestyle changes.31 Jul 2020

What stage is hepatic steatosis?

The first stage is referred to as simple fatty liver or steatosis; This occurs when the liver cells start to build-up fat, although there is no inflammation or scarring at this stage. There are often no symptoms in this early stage, so many people are unaware they have a fatty liver.27 Jul 2020

What is hepatic steatosis?

Pathology. Hepatic steatosis is due to the abnormal accumulation of lipids, particularly triglycerides within hepatocytes 3,4. These are found in both small and large vesicles. Macroscopically, the liver is enlarged, yellow and greasy. Steatosis can lead to fibrosis and cirrhosis.

What is fatty liver?

Diffuse hepatic steatosis , also known as fatty liver, is a common imaging finding and can lead to difficulties assessing the liver appearances, especially when associated with focal fatty sparing.

Is renal cortex hypoechoic?

renal cortex appearing relatively hypoechoic compared to the liver parenchyma (normally liver and renal cortex are of a similar echogenicity) increased echogenicity relative to the spleen, when there is parenchymal renal disease. absence of the normal echogenic walls of the portal veins and hepatic veins. important not to assess vessels running ...

What is focal fatty sparing?

focal fatty sparing. islands of normal liver tissue within a sea of hepatic steatosis. possibly occur due to regional perfusion differences 2. importantly, compared to intrahepatic masses, fatty sparing has no mass effect with no distortion of vessels. see also focal hepatic steatosis.

Can you see hepatic steatosis on ultrasound?

there is potential for missing mild hepatic steatosis on ultrasound if there is concurrent chronic renal disease, which increases the echogenicity of the kidneys; if there is any question that the patient may have a chronic renal disease, comparison of the left kidney with the spleen may be useful.

Is fat infiltration a steatosis?

The term 'fatty infiltration of the liver' is often erroneously used to describe liver steatosis. Since fat is intracellular in liver steatosis, and not in the extracellular matrix, using infiltration to describe it is factually incorrect.

What percentage of hepatitis C patients have steatosis?

In chronic hepatitis C patients, the prevalence of steatosis ranges from 40% to 86% (mean, 55%) [ 38, 39 ]. The majority of patients with steatosis (78%) have mild steatosis affecting less than 30% of hepatocytes. Thus, steatosis occurs more frequently in patients with chronic hepatitis C (55%) than in the general population (20%-30%) of adults in the Western world [ 40 ]. Macrovesicular steatosis is found in the periportal region of the liver-different from the centrilobular distribution characteristic of NASH patients. Mild steatosis had been reported in nearly 40% of patients with HCV genotype 4 [ 41 ].

What is NAFLD cirrhosis?

The severity of disease varies widely from asymptomatic chronic infection to cirrhosis and hepatocellular carcinoma (HCC)[1]. NAFLD represents a spectrum of liver diseases characterized mainly by macrovesicular steatosis that occurs in the absence of alcoholic consumption.

What is the cause of liver disease?

Both hepatitis C infection and non-alcoholic fatty liver disease (NAFLD) are major causes of liver related morbidity and mortality. Hepatitis C virus (HCV) is a major cause of chronic liver disease with about 170 million people infected worldwide.

When was metabolic syndrome first described?

Metabolic syndrome was first described in 1988 by Reaven GM[6]. Whether hepatic IR causes cellular injury and inflammation in the liver or is the result of both inflammation and steatosis is still unrevealed[7].

Is hypertension a metabolic syndrome?

Hypertension is one of the main components of metabolic syndrome. The renin-angiotensin system (RAS) plays a role in progression of chronic liver disease to fibrosis, and HCC and this action is mediated via several mechanisms such as direct effect on activated HSCs and neovascularization [ 28 ].

What is metabolic syndrome?

Metabolic Syndrome (X-syndrome) is a cluster of disorders including central obesity, IR with or without type 2 DM, dyslipidemia and hypertension. Recent findings linking the components of the metabolic syndrome with NAFLD and the progression to non-alcoholic steatohepatitis (NASH), fibrosis and cirrhosis will be reviewed. Metabolic syndrome was first described in 1988 by Reaven GM [ 6 ]. Whether hepatic IR causes cellular injury and inflammation in the liver or is the result of both inflammation and steatosis is still unrevealed [ 7 ]. Hepatic steatosis is caused by imbalance between the delivery of fat in the liver and its subsequent secretion or metabolism. In other words, fat accumulates when the delivery of fatty acids to the liver, either from the circulation or by de novo synthesis within the liver, exceeds that capacity of the liver to metabolize the fat by β-oxidation or secrete it as very low-density lipoproteins (VLDL). Derangements in any of these pathways alone or in combination causes fat to accumulate in the liver.

What is the adipocyte tag?

In the fasting state, adipocyte TAG is hydrolyzed to release FFAs, which are transported to the liver where they can serve as substrates for mitochondrial β-oxidation. β-oxidation of fatty acids is a major source of energy needed to maintain liver viability during fasting. It is also the source of the ketone bodies, acetoacetate and acetone. These are released into the blood and are essential fuel sources for peripheral tissues, when glucose is in short supply. Defects in hepatic β-oxidation cause microvesicular steatosis of the liver, increase in oxidative stress due to extramitochondrial oxidative stress. ROS and peroxidation products lead to cytotoxic events, release of proinflammatory cytokines and activation of hepatic stellate cells and fibrosis [ 8, 9 ].

Liver ultrasound

Diffuse increased echogenicity of the liver parenchyma in keeping with mild hepatic steatosis. Liver contours are smooth and there are no focal hepatic lesions. Portal vein is patent and has anterograde flow.

Case Discussion

This case illustrates mildly increased liver echogenicity with a clear depiction of the portal and hepatic veins, in keeping with mild diffuse hepatic steatosis .

How do you know if you have fatty liver disease?

If your case of fatty liver disease is symptomatic, you may experience: Liver pain. Yellowing of the skin (jaundi ce) Fatigue. Weight loss . Nausea.

How to reverse fatty liver?

Food can help you change how your DNA is expressed and following a hepatic steatosis diet can help reverse fat accumulation in your liver. To lower the risk of developing fatty liver disease, it is important to cut out foods that inhibit healthy metabolic function and negatively alter the expression of genes that play a role in metabolic processes.

Can hepatic steatosis be reversed?

If taken care of during these early stages, hepatic steatosis can be easily reversed. Issues arise if curative measures are not taken and fatty liver disease progresses to more life-threatening forms of liver disease. Progressed forms of fatty liver disease include:

Is fatty liver disease reversible?

Hepatic steatosis or fatty liver disease is a highly manageable and reversible condition when addressed at early stages. Even if you are genetically predisposed to fatty liver disease, you can make diet and lifestyle changes that positively alter the expression of your DNA and reverse fatty liver.

Why is aerobic exercise important?

Exercise promotes weight loss and cardiovascular health. Aerobic exercise is particularly important for increasing cardiovascular health since it strengthens the heart and blood vessel function. This, in turn, leads to better blood flow and lower blood pressure.

What enzymes are elevated in the liver?

Your physician will likely make your diagnosis based on a blood test that reveals elevated liver enzymes, including high levels of aspartate transaminase (AST), alanine transaminase (ALT), alkaline phosphatase (ALP), and gamma-glutamyl transpeptidase (GGT).

Is high blood pressure a vascular disease?

High blood pressure: High blood pressure, or hypertension, is a vascular manifestation of metabolic syndrome and is correlated with heart disease. Certain medications: Certain chemotherapy drugs, like methotrexate, can alter hepatic processes and increase the likelihood of developing fatty liver disease.

How is hepatic steatosis diagnosed?

Diagnosis. Hepatic steatosis seldom shows overt symptoms. It is usually discovered either by accident while testing for something else or through proactive testing when a high risk factor such as alcoholism or obesity is known to be present.

What are the two types of hepatic steatosis?

There are two types of hepatic steatosis based on the cause of the illness. These are alcoholic and non-alcoholic steatosis. Non-alcoho lic steatosis is something of a catch-all, as it means fatty liver that is caused by anything other than alcohol abuse.

What is the most common liver disease?

Hepatic Steatosis. Hepatic steatosis, also known as fatty liver disease or simply as fatty liver, is probably the most common liver disease. It strikes an estimated twenty percent of the American adult population. Globally, it ranges from nine to almost forty percent of the population depending on location, with the advanced world ...

What are the causes of fatty liver?

In addition to alcohol, obesity, and diabetes, fatty liver disease can also result from several other causes. Some prescription medications have been implicated in the disease. These include corticosteroids, some antiviral medications (e.g. nucleoside analogs ), tetracycline (an antibiotic), and several others.

Can alcohol withdrawal be life threatening?

Withdrawal symptoms of alcohol are very severe and can even be life- threatening. Once the patient stops drinking alcohol, follow- up tests monitor progress in reversal of the disease. In cases of non- alcoholic fatty liver disease, the treatment varies by the cause, with obesity being the most common cause.

Is hepatic steatosis a dangerous disease?

Although it is not itself a dangerous illness, hepatic steatosis once diagnosed is always reason for treatment. That’s because it can be a first sign or first stage of liver diseases that are far more serious, such as cirrhosis of the liver.

What is fatty liver ultrasound?

Fatty liver can be described by ultrasound as mild, moderate and severe, though this is more a qualitative assessment, with mild fatty liver you’ll see increased echogenicity, and loss of the interface with the hepatic vein walls.

What is fatty liver?

Hepatic Steatosis (Fatty Liver) Fatty liver is a condition consisting of the accumulation of fat (triglycerides) in the form of vesicles within the livers hepatocytes. Fatty liver is divided into two subcategories; alcoholic fatty liver disease ALFD and non-alcoholic fatty liver disease or NAFLD, though the clinical outcomes are nearly the same.

What causes NAFLD?

Caused by conditions like metabolic disorder, glycogen storage diseases and acute fatty liver of pregnancy.

Where is focal fatty infiltration?

3 distinct areas of increased echogenicity, a common place for focal fatty infiltration is near the falciform ligament. The prevalence of fatty liver disease ranges from 25% to 35% . approximately 75% of obese people have fatty infiltration. It is the most common cause of abnormal liver function tests in the United States.

Does fat affect the liver?

With increasing severity you’ll lose the interface of the portal vein walls and biliary radicals to the liver parenchyma. Fat increases the attenuation of sound and in severe cases you can’t make out the posterior aspects of the right lobe of the liver, including the diaphragm and right kidney.

What is the term for elevated liver enzymes?

Patients are usually asymptomatic and present with “transaminitis” a term which is synonymous and used interchangeably with elevated liver enzymes and or transaminasemia, specifically aspartate aminotransferase [AST] and alanine aminotransferase [ALT] are elevated.

What is liver biopsy?

Liver biopsy is the most sensitive and specific test in evaluating patients with AFLD. The biopsy is used to determine whether there is liver injury like fibrosis. The biopsy is done often under ultrasound guidance. The procedure is done with a team that includes a Sonographer, Physician, Registered Nurse and Laboratory Technologist. Using a sterile technique the procedure is often done in a supine position, the most adequate window is found and marked. The biopsy is taken through intercostal spaces, using the ultrasound to avoid hitting nearby structures like Kidney, Bowel, GB or Large vessels.

Terminology

Pathology

  • Hepatic steatosis is due to the abnormal accumulation of lipids, particularly triglycerides within hepatocytes 3,4. These are found in both small and large vesicles. Macroscopically, the liver is enlarged, yellow and greasy. Steatosis can lead to fibrosis and cirrhosis. Diffuse hepatic steatosis is often idiopathic. However, it may be associated wi...
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Radiographic Features

  • General features include: 1. mild hepatomegaly in ~75% 5 2. attenuation/signal of liver shifted towards that of fat 3. focal fatty sparing 3.1. islands of normal liver tissue within a sea of hepatic steatosis 3.2. possibly occur due to regional perfusion differences 2 3.3. importantly, compared to intrahepatic masses, fatty sparing has no mass effect with no distortion of vessels 3.4. see also …
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Treatment and Prognosis

  • As long as hepatic fibrosis and cirrhosishave not developed, fatty change is reversible with modification of the underlying causative factor, e.g. alcohol, pregnancy, obesity, diet.
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Practical Points

  1. there is potential for missing mild hepatic steatosis on ultrasound if there is concurrent chronic renal disease, which increases the echogenicity of the kidneys; if there is any question that the...
  2. a greater echogenicity difference between the right kidney and the liver than between the left kidney and the spleen is indicative of hepatic steatosis 12
  1. there is potential for missing mild hepatic steatosis on ultrasound if there is concurrent chronic renal disease, which increases the echogenicity of the kidneys; if there is any question that the...
  2. a greater echogenicity difference between the right kidney and the liver than between the left kidney and the spleen is indicative of hepatic steatosis 12
  3. if the attenuation of the liver on unenhanced CT is at least 10 HU less than that of the spleen the diagnosis of fatty liver is made 11
  4. MRI IP/OOP imaging shows a signal drop when fat-fraction >10-15% 16