The liver is the engine of the human body. It is basically composed of 2 types of cells (a cell is the basic building block of the human body)   hepatocytes (liver cells) and cholangiocytes (bile duct cells). It also has other supporting tissue and their respective cells. The hepatocytes are by far the most numerous cell type, not surprisingly tumours (otherwise called mass or lump.  Tumor  means lump in Latin), of this cell form the majority of abnormal growths in the liver. Abnormal growths can be benign (that is, they do not grow rapidly, spread to other parts of the organ or to other parts of the body) or malignant (grow rapidly, spread to other parts of the organ and to other parts of the body, i.e. cancer). These abnormal growths from liver cells are Focal nodular hyperplasia (FNH), Adenomas (the benign variety) and hepatocellular cancer (otherwise called Hepatoma/HCC, the cancerous type). What we need to recognize is that certain adenomas can turn into HCC, over a period of time. The other type of growths in the liver are those that have originated elsewhere in the body and spread to the liver, for example a growth of the breast spreading to the liver. These are in fact the commonest tumours of the liver. I will discuss these at a later date.

Benign growths of the liver

Common benign growths are Haemangiomas, FNH and Adenoma. Most of these are identified when a scan is performed as investigation for some other problem. Accurate diagnosis of the nature of these lumps is important to determine the type of treatment needed. This can be ascertained by a carefully selected scan like an Ultrasound, CT scan or an MRI. The technology of these scans is continuing to evolve and get better year on year. There are different types of Ultrasound, CT and MRI scans with different applications, based on whether contrast is used or not, the different phases of scanning, the type of MRI scanning sequence etc. Therefore, these scans although commonly available and used very frequently, need to be performed under the supervision of a team involving Liver doctors and radiologist who is well versed in the diagnosis of liver lumps, for accurate diagnosis without the need for unnecessary tests (Box 1).

Haemangiomas are by far the commonest. It is estimated that 5% of the adult population harbor this lump in their livers! They occur in both sexes and at all ages but are commonest between 30 to 50 years in women. Most of them are small, less than 4-5 cms in diameter and are are identified on Ultrasound. MRI and its various applications is the scan of choice for accurate diagnosis. This is crucial as most of them do not need treatment.

Focal Nodular Hyperplasia (FNH) are the second most common liver lumps. They are usually single and small (less than 4 cms) and occur in women between 35   50 years of age. About 2.5-3% of population harbor this lump in their livers. Special MRI techniques using special contrast agents is diagnostic and the findings are quite distinct from haemangiomas. Again treatment is not recommended apart from selected circumstances. Assessment in a dedicated Liver team is recommended for accurate diagnosis and a proper management plan to be formulated.

Hepatic adenomas (Hepatocellular adenoma, HCA) are rare lumps and occur in 0.2 to 0.3% of the population, again occurring mostly in young women during their reproductive period. They are again solitary and most usually 3-4 ms in diameter.

There are a couple characteristics which make this lump different from the previous 2, there is a strong relation between hormones the development of HCA and some of these HCA can turn into the malignant Hepatocellular carcinoma (HCC). Therefore, accurate characterization and diagnosis of these HCA is essential. Sometimes biopsy of the lump, molecular and genetic tests maybe necessary to determine if the HCA has a high chance of progressing to HCC. Imaging tests are generally adequate, contrast MRI Liver and its different techniques is accurate in diagnosing HCA and sub-typing it, however CT and contrast-enhanced Ultrasound is sometimes necessary along with MRI.

Generally, a HCA in a male is recommended for surgical resection. While in women, discontinuation of the OCP pill/ any other such hormone is recommended for a period of 6 months, if the HCA does not have any worrying features and size is less than 5 cms. IF HCA is larger than 5 cms and has features suggestive of a high risk for change to HCC, surgery is advised. Again these decisions have to be made as a part of a Multi-disciplinary team (Box 1)

Malignant growths beginning within the Liver

As mentioned earlier, usually malignant growths which are seen in the liver spread to it from elsewhere in the body. Hepatocellular cancer/Hepatoma (HCC) is the commonest malignant tumour beginning within the liver, as apposed to those that spread to the liver from elsewhere. It occurs between 40-70 years of age and occurs commonly in men. It is estimated that 17000 new patients develop this tumour every year in India. The vast majority (> 80%) of these develop in patients who have chronic liver disease (cirrhosis). Importantly the number of HCC cases is increasing year on year as cirrhosis due to fatty liver disease, Hepatitis B (3% of Indian population carry this virus, ie nearly 40 million individuals) and alcohol are continuing to increase in India. Nearly overall it is the 4th or 5th most common cause of cancer and the second most common cause of cancer-related death. This is continuing to increase too. We do not have a national policy in India to screen and diagnose these lumps in the liver at an early stage. Most patients present at a late stage when effective treatment is not possible.

Hepatitis B is a vaccine-preventable disease, there are good drugs to treat it and decrease the risk of cirrhosis and HCC in HBV patients, therefore it is important to test for this virus infection. The fatty liver disease can cause chronic liver damage and HCC, regular exercise and consuming a balanced diet can reduce the risk of fatty liver disease.

The usual mode of detection of these growths is when a scan is done for some other reason. Occasionally patients can develop pain in the abdomen or jaundice which leads to an investigation. The treatment of HCC depends on the extent of tumour, the extent of the chronic liver disease (the stage of cirrhosis) and the overall condition of the patient. These patients are best seen, assessed and treated in a team (Box 1) which specializes in the treatment of Liver disease.

The best treatment for HCC is surgery. However, this is suitable only for certain carefully selected patients. This can take the form of liver resection (where a portion of the liver with tumour is removed) or liver transplantation (where the whole liver is removed and a donated liver (full or partial) is replaced into the patient. Indeed surgical has excellent survival rates; more than 75% of patients survive for more than 5 years after resection or transplantation making treatment for these cancers one of the most satisfactory.

Other treatments which can be combined with surgery in selected patients or can be combined with patients not suitable for surgery are different types of Interventional radiological therapy   chemotherapy or radiotherapy delivered through fine catheters introduced into the blood vessels of the liver (TACE: Transarterial chemotherapy, TARE: Transarterial radiotherapy) and or heat energy delivered to the tumour area by means of carefully placed needles/probes (RFA: radiofrequency ablation, MWA: microwave ablation).

HCC is unique cancer as its treatment should be tailored to the patient, the treatments are varied and range from catheter-based non-invasive treatment to major surgery and transplantation. This necessitates that HCC patients are best managed in a multidisciplinary team which is highly skilled in and specializes in the management of liver diseases.

Box 1: A liver tumour multidisciplinary team   Integrated Liver Care team

The team should be one with expertise in the management of benign liver lesions and should include a Hepatologist, a Hepatobiliary & Transplant surgeon, Diagnostic and Interventional radiologists, Medical oncologist and a Pathologist.

Each member of the team must hold specific and relevant training, expertise and experience relevant to the management of benign liver lesions.

The team should be one with the skills required not only to appropriately manage these patients but also to manage the rare but known complications of diagnostic or therapeutic interventions.

The Increasing Problem Of Liver Tumours In India!

Dealing with liver Cirrhosis largely depends on its stage. While it is good to know and read about Cirrhosis, referring to some qualified medical personnel is the best course of action. If a person is already undergoing medical treatment, there are simple ways to deal with this condition.

Get treated in the early stages: Liver being one of the most self-healing organs, a person has good chances of healing, if a donor donates partial-liver. A doctor eradicates the distorted portion of the liver and replaces the same with a partial transplant from the donor. For the donor, it takes about 3-4 months to grow back the donated portion of the liver, while the patient might take 10-12 months to fully recover. This is possible in the early stages of Cirrhosis.
Stop the catalyst of liver Cirrhosis: It is essential to stop the underlying cause of Liver Cirrhosis. Stuff like saturated fat, alcohol, salt, OTC pain relievers, excess sugar etc should strictly need to be avoided to ensure the progression of liver Cirrhosis is slow. Studies have shown that moderate consumption of coffee can help to deal with Liver Cirrhosis.
Sodium free food: It is advised by most doctors that Cirrhosis patients refrain from consuming sodium-rich food. It helps a cirrhosis patient to bypass edema and ascites. This is extremely challenging, since food without sodium tastes bland and unappetizing. It is therefore suggested that healthy herbs, paprika, pepper etc are consumed to make up for sodium.
A balanced diet: A liver Cirrhosis patient should be extremely careful when it comes to choosing the right diet. They should consume lots of fresh fruits and green vegetables. While consumption of animal protein is not advised, the quota of protein should be fulfilled from peas, tofu, quinoa, etc.
A good exercise regime: Patients with liver Cirrhosis should ensure that an adequate exercise regime is followed so that the muscles do not get wasted. Exercise for half an hour also helps to lose weight and negate the chances of water retention in the body. Exercise should also be followed by lots of sleep, so that the body gets enough time to recover from the stress of exercise.
Avoid NSAIDs: If a person is suffering from liver Cirrhosis, using drugs such as naproxen, aspirin, ibuprofen, acetaminophen etc should be strictly avoided for mild pain and inflammation. These drugs can be highly toxic for a person suffering from Cirrhosis. It is wise to consult a doctor before consuming any medication.
Stay away from infection: A patient with liver Cirrhosis suffers from a compromised immune system. It is therefore advised that a patient stays away from possible bacteria, viral and such other chronic infection. Any infection can result in inflammation of the bile duct that causes scarring of the liver tissue.

Liver Cirrhosis - 7 Ways To Deal With The Problem!

Liver disorders are very common. Gastroenterologists trained in liver diseases are known as Hepatologists.Symptoms of liver disease include jaundice, vomitting of blood(Hemetemesis), bleeding in the motions(also known as Melena or hematochezia),altered sensorium known as Hepatic encephalopathy(HE), Renal failure also known as Hepatorenal syndrome(HRS), Breathlessness (due to Hepatopulmonary syndrome and portopulmonary hypertension).

Let s understand the liver disease point by point: 

1. Hepatitis B: Hepatitis B is a virus which is usually acquired in four ways. Unprotected sexual intercourse with the infected partner, from infected to the child, infected needles, infected blood. It takes many years for the hepatitis B virus to cause liver damage. Once the liver is damaged it is called Cirrhosis or chronic liver disease. When liver is more then 80 percent damage, it causes blood vomiting also known as hematemesis, Ascites(water in the stomach), Jaundice, HE, HRS etc. Treatment depends on virus count which is calculated by HBV DNA PCR and other lab parameters. Once the treatment starts monitoring of viral count is done to document the effectiveness of the treatment. All the family members and sexual partners must get HbsAg screening done to detect early silent infection. All those who test negative, Hepatitis vaccination should be done, by three injections which provide them with 100% protection against the HBV infection.

2. Hepatitis C: Hepatitis C is a virus which is acquired by injection drug abuse and infected needles and blood. Transmission by unprotected sexual intercourse is possible but chances are very low. Hepatitis C virus damages the liver slowly and takes years before clinical symptoms of liver failure appear. Once the liver is damaged it is called Cirrhosis or chronic liver disease. When the liver is more than 80 percent damage, it causes blood vomiting also known as hematemesis, Ascites(water in the stomach), Jaundice, HE, HRS etc. All hepatitis C virus infected patients must be treated irrespective of virus count. Baseline virus count by HCV RNA  is done to measure the effectiveness of the treatment. HCV Genotype is done for patients with cirrhosis. Vaccination is not available for hepatitis C but newer medicines(Direct acting antivirals DAA) for Hepatitis C can cure it with more than 95% certainty.

3. Acute viral Hepatitis: Sudden infection in the liver can be due to multiple causes but commonly is due to Hepatitis A and Hepatitis E, which are caused due to eating or drinking contaminated food and water. Rarely Hepatitis B and Hepatitis C can cause Acute hepatitis including Acute liver failure. Acute hepatitis presents with Jaundice, loss of appetite, generalised fatigue, vomiting and abdominal pain.  Patients are usually treated on an outpatient basis but if they have severe vomiting, abdominal pain or altered sensorium, they are admitted for inpatient care and monitoring. Drugs or complementary and alternative medicines (CAM) such as herbal or bodybuilding protein supplements which contain steroids and heavy metals can cause acute hepatitis.

4. Liver transplant: Removing the damaged liver and to put a new liver in the patients is called Liver transplant. Liver transplant is major surgery and costs around 20 to 30 Lacs. Indications of liver transplant are an acute liver failure due to hepatitis viruses such as hepatitis A, Hepatitis B, Hepatitis C and Hepatitis E, decompensated cirrhosis due to any cause including chronic hepatitis B and C, Drug-induced liver failure such antitubercular drugs(ATT). The donor for liver transplant is either a close relative (Living donor liver transplant LDLT) or a brain dead donor (deceased donor liver transplant DDLT).

5. Chronic liver disease or Cirrhosis: It is the end result of slow damage to the liver, where many liver cells are damaged and replaced by fibrosis. Apart from viruses such as Hepatitis B and Hepatitis C, Alcohol is one of the most common causes of cirrhosis.

Drinking alcohol for years together causes irreversible liver damage causing cirrhosis. Alcohol can cause acute severe hepatitis, acute liver failure and chronic liver disease.  Patients with suspected heavy alcohol drink must-visit Hepatologist (Liver doctor ) for proper diagnosis of stage of liver damage and deaddiction programme. USG Abdomen, blood tests, endoscopy and Fibroscan is usually done to know the liver health.

Fatty liver is also known as non-alcohol fatty liver disease(NAFLD) is a lifestyle disorder due to lack of exercise, high fat diet, obesity and due to drugs. Fatty liver causes silent liver damage and if not recognised in time can cause irreversible liver damage and cirrhosis. The evaluation includes Liver function tests, Ultrasound abdomen, Fibroscan. Treatment includes daily moderate-intensity aerobic exercise, drinking coffee and a low-fat diet. Few medicines are available which help in the reversal of fatty liver.

What Should You Know About Liver Disorders?

The liver can be transplanted either from the living-donor or from the deceased donor. Liver transplant surgery includes the transplantation of a part of the liver from the donor to the donee who has a damaged liver and does not function well. Living-donor liver transplant is more common especially among children as the number of liver donee are more than the available deceased donors of the liver.

Living liver donors are the alternative for the donee waiting for a liver transplant from a deceased person. The remaining liver of the living donor, after the transplant, regenerates itself and reoccurs to its usual capacity and volume within a few months post the surgery. The donated part of the liver to the donee also regenerates and restores to its normal functioning.

Most often, the living-donor of the liver is a close relative or friend. Everyone or anyone cannot donate a liver but only those can who have the matching liver depending on age, organ size, blood type, and other health and medical factors. Both the donor and the donee have to go through a thorough medical examination before the transplant to know the potential outcome and risk involved.

Procedure-
For the transplant, the donor is first operated and the required part of his/her liver is removed. The donee s damaged liver part is then replaced by the healthy liver part of the donor. Both the donor s and the donee s operated liver is then attached with the bile duct and the blood vessels. Both the patients are kept under observation for some days for the medical team to know if they are having any health issue due to the transplant. The operated liver regenerates itself within certain months and starts functioning normally.

Precautions for the Donor-
Although the donor can go back to normal life routine a few months after the transplant there are a number of precautions that should be taken into account to avoid any health issue or liver damage.
  Avoid smoking.
  Avoid consumption of alcohol.
  Eat on time or do not starve or overeat.
  Avoid having heavy meals.
  Avoid heavy exercise or weight lifting or physical work.

Take Away-
Liver transplant is a surgery conducted to remove the damaged or injured liver of the patient with the healthy liver of the donor. The donor of the liver can either be deceased or living depending upon the availability of the donor and the severity of the donee.

Various lab tests and examinations are conducted on the donor and the donee to confirm their match and assess potential complications before the transplant. The donor is usually someone close to the patient or the donee whose liver has been matched depending upon various factors. As the liver regenerates within a few months, the donor can lead a normal life after the transplant.

Know How To Choose A Liver Donor For Liver Transplant! 

Liver transplant in the only curative option available for patient who develop cirrhosis of liver due to any cause ( Chronic Hepatitis B , Chronic Hepatitis C, Alcoholic Cirrhosis, NASH etc). Once patient has been diagnosed with cirrhosis it can not be reversed with any non-surgical treatment . Over a period of time patient may develop worsening in liver function resulting in complications of cirrhosis (bloody vomitus, black stools, jaundice , altered sensorium, renal dysfunction, abdominal swelling etc) labeled as  decompensated cirrhosis . These patients require Liver transplant at the earliest and should be reffered to a liver transplant centre immediately. Ideally all patient diagnosed with cirrhosis should be under the follow-up of a gastroenterologist/Hepatologist. The source of graft liver can be from two sources namely from a deceased brain-dead donor or a Living-related donor and termed respectively as DDLT ( Deceased donor liver transplant) and LDLT ( Living Donor Liver Transplant) . However both DDLT and LDLT have nearly 90% success rate and both the procedures have their own benefits and lacunaes. Also the decision to go for DDLT and LDLT may vary for any particular patient. 

Before the Liver transplant 

All recipient and Living donor go thorough evaluation before the transplant process that includes blood investigations, Imaging studies, Cardiac and pulmonary fitness tests, multidisciplinary consultation before the clearance for liver transplant is achieved. The healthcare provider will explain the entire procedure. The healthcare provider is also supposed to answer all your questions. You would be needed to sign a consent form that allows the doctor to do the surgery. Eating food is not allowed at least 8 hours before the surgery. If you cannot stay relaxed before the surgery, a sedative will be given. 

After the Liver Tranplsant 
The recipient surgery lasts for anywhere between 12-16 hrs and donor surgery for 8-12 hrs. After the surgical procedure is complete, you will be taken to the intensive care unit (ICU)and will be closely watched for several days. 

Immediately After the Surgery 
You will most likely have a tube in your throat. This is so that you can breathe with the help of a machine (a ventilator) until you can breathe on your own. The ventilator tube will be removed on next morning when all parameters are found to be satisfactory. All parameters are monitored by round the clock critical care doctors and staff for a few days. The recipient has to stay in the hospital for three weeks and the donor is discharged in one week. 

Blood samples will be collected on a regular basis to check the functioning of the new liver. Antibiotics will be infused via IV channels to prevent you from infections. The area where the operation was done should always be kept clean after you have reached home. Any stitches or surgical sutures will be removed at a follow-up visit.

Complications that may arise 
Blocked blood vessels to the new liver, bleeding, an infection, leakage of bile or blocked bile ducts, or the new liver not working for a short time right after surgery are a few complications that may arise. Not to aggravate the condition, in the case of a complication, it is imperative to visit your doctor.

Liver Transplant - What To Expect Before & After The Procedure?

Fatty liver is a condition where excess fat is deposited on this organ. Also called as steatosis, this condition happens when more than 5- 10 percent of the weight of the liver is made up of fat.

Fatty liver is a common condition among people. A study from coastal regions of India found ~ 25% of healthy persons had patients had fatty liver on ultrasound.

It can occur at all ages including childhood, highest prevalence is in 40 50 year age group. Prevalence more in patient who are obese and in diabetic patients.

Types of Fatty Liver

1 Alcoholic fatty liver: This condition occurs when there is a heavy consumption of alcohol. Gastroenterologists recommend abstention from alcohol for this condition to subside. If the patient continues to consume alcohol, then liver cirrhosis may develop.

2 Non alcoholic fatty liver (NAFL): One may develop a fatty liver even if one is not an alcoholic. The liver in some cases is unable to process the fat in cells causing them to build-up on the organ.

When more than 10% of the liver is made of fat then this condition is called Non Alcoholic Fatty Liver (NAFL).

Non alcoholic steatohepatitis (NASH): When fatty liver is associated with inflammation in liver patient is said to be having Non alcoholic steatohepatitis. NASH is a more advanced stage of NAFLD, and has a higher risk of progressing to liver cirrhosis or hepatocellular carcinoma (HCC). These condition display symptoms like jaundice, vomiting, nausea, loss of appetite and abdominal pain. Blood test (LFT) shows raised enzymes level. Approx 5-8% of the Indian population has NASH. Consult a doctor if you are experiencing any of these symptoms.

3 Fatty liver during pregnancy: Occurring mainly in the third trimester, the symptoms of this condition are vomiting, nausea, pain the right part of the abdomen and jaundice.

Symptoms

During the early stages (fatty liver) of the disease, patients usually have no symptoms directly related to liver disease. However, people may experience a vague abdominal discomfort. If their liver is inflamed (NASH) then they may display symptoms of poor appetite, weight loss, pain in the abdomen and disorientation.

What causes fatty liver?

The most common cause of fatty liver is alcoholism. When the human liver is unable to metabolize fat fast enough or when there is an excess accumulation of fat on the liver cells then the liver becomes fatty. However, intake of high-fat foods may not result in a fatty liver.

Predisposing factor:

1 Diabetes mellitus

2 Obesity or being overweight

3 Hyperlipidemia or the condition where there are high levels of fat in the blood

4 Genetic reasons

5 Rapid loss of weight

6 Drugs: Aspirin, steroids, tamoxifen, tetracycline etc. cause side effects which also leads to fatty liver

7 Nutritional status (eg, overnutrition, severe malnutrition, total parenteral nutrition [TPN], or starvation diet)

8 Other health problems (eg, Hepatitis C infection, celiac sprue and Wilson disease)

Know More About Fatty Liver!

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