Dr. Rajiv Khanna is one of the finest Cancer Specialist in India. He is an experienced Surgical Oncologist in the India. The Medical practitioner has been associated with various reputed hospitals in the India. The physician is currently working as a Senior Consultant Gastrointestinal & Minimal Access Surgery, Pushpawati Singhania Research Institute, India. The doctor is a well-reputed and sought after medical expert and is
qualified. Dr. Rajiv Khanna has been associated with many hospitals over the course of his illustrious and experienced career.
The hospitals include:
Dr. Rajiv Khanna has more than 27 Years of clinic experience. The Clinician specializes in and performs the following surgeries:
Abdominoperineal resection (APR) is a type of a surgery in which the anus, rectum, and sigmoid colon are removed through small cuts in the belly. It is a surgical procedure done primarily to remove the cancer of the rectum. Typically, abdominoperineal resection (AP) is conducted as an elective procedure. This procedure is most often used to treat rectum cancer if it is located very low in the rectum or in the anus, close to the sphincter muscles.
Nowadays, advanced surgical techniques and other treatment modalities have brought an increase in the rate of sphincter-sparing operations. However, APR surgery is still necessary in selected cases, especially if the patient has distal tumors or poor sphincter function. AP resection is a major operation. During perineal resection, the rectum, distal colon, and anal sphincter complex are completely removed using both anterior abdominal and perineal incisions. Once the anus and rectum are removed, a permanent colostomy is needed to complete the procedure.
Colostomy brings the colon to an opening at the surface of the skin, which allows the waste to pass out of the body. This new opening is called stoma and usually measures from one to one-and-a-half inches in diameter. A pouch, or a stoma appliance, is needed to be worn at all times. The stoma has no sphincter muscles, so there is no conscious control over the elimination of waste products from the body after the procedure.
Colorectal cancer is the second most common cancer in the world. It can metastasize and spread to other body parts. Colorectal cancer is dangerous and can be life-threatening. But death rate from colorectal cancer has dropped in the recent years, thanks to advance screening techniques and better colorectal treatment options.
Colorectal cancer is also known as bowel cancer, colon cancer, or rectal cancer. Colorectal cancer begins as an abnormal growth of cells in the inner lining of the colon or rectum. This abnormal growth is called a polyp.
Some types of polyps can change into cancer over the course of several years. But it does not mean that all polyps have the tendency to become cancerous. The chance of changing a polyp into colorectal cancer depends on the type of polyp that grows.
Colorectal cancer can affect men and women equally. However, studies have proven that men might develop it at a younger age.
There is no definite cause of colorectal cancer, but old age and certain lifestyle factors can increase colorectal cancer risk. Some of these colorectal cancer risk factors include the following:
A majority of colorectal cancers are adenocarcinoma. If you have been diagnosed with colorectal cancer, there are 95 percent chances that it is an adenocarcinoma. But there are some other types of colorectal cancer such as carcinoid, gastrointestinal stromal, lymphomas, and sarcomas.
There are no early signs of colorectal cancer, but once it grows, the patients may experience the following colon cancer symptoms:
The last part of the gastrointestinal system is referred as the colon and it is 5-6 cm long. It is ‘U’ shaped and it starts from the distal part of the small intestine and is connected to the rectum and anus. It absorbs the fluids, processes the metabolic waste products, and eliminates through the rectum and anus. The removal of the colon is called colectomy.
There are different types of colectomies such as complete colectomy, right hemicolectomy, left hemicolectomy, sigmoid colectomy, and proctocolectomy. The surgical removal of the left side of the colon (descending colon) is called left hemicolectomy surgery. The surgical removal of the cecum, ascending colon, and the hepatic flexure (right side of the colon) is called as the right hemicolectomy surgery.
Some of the conditions that require complete colectomy or hemicolectomy surgery include the following:
A hemicolectomy procedure can be performed as a laparoscopic or open surgery. The type of the surgery to be performed is decided by the surgeon during the evaluation and the decision depends on the age and the condition of the patient.
Sometimes the laparoscopic procedure can also be turned into open surgery, depending on the feasibility of the procedure with respect to safety and accuracy. Overall, the following parameters decide whether a laparoscopic or an open surgical procedure will be performed:
Pancreatic cancer starts from the cells and tissues of the pancreas – a crucial organ that releases enzymes for digestion. It is also responsible for the production of insulin, the crucial hormone that regulates blood sugar in humans.
The pancreas can be affected by both non-cancerous as well as cancerous tumors. The most common type of pancreatic cancer is pancreatic ductal adenocarcinoma, which starts in the cells that line the ducts responsible for the transport of enzymes from the pancreas to the outside.
Pancreatic cancer is often diagnosed at an advanced stage – when it has spread to other nearby organs and therefore, the treatment is challenging in such situations. The diagnosis mostly takes place when certain symptoms are observed.
Stomach cancer, also known as gastric cancer, is the fifth most common cancer worldwide. This disease is a result of the growth of cancerous and malignant cells in the inner lining of the stomach.
Stomach cancer does not grow overnight as this disease usually grows slowly over many years. Some pre-cancerous changes take place before true cancer actually develops. But these early changes rarely result in any symptoms and therefore, often go undetected in the early stage when it is most easy to treat it.
Gastric cancer can grow through the wall of the stomach and invade nearby organs. It can easily spread to the lymph vessels and lymph nodes. In an advanced stage, it can travel through the bloodstream and spread or metastasize to organs such as the liver, lungs, and bones. Usually, people diagnosed with stomach cancer have either experienced metastasis already or eventually develop it.
Stomach cancer should not be confused with other cancers in the abdomen or esophageal cancer. Some other cancer can also occur in the abdomen, including cancer of the large and small intestine, liver or pancreas. These cancers may have different symptoms, outlook, and options for treatment.
Some other types of stomach cancers include squamous and small cell carcinoma and leiomyosarcoma. These cancers are very rare.
There is no single, definite cause behind stomach cancer. However, several stomach cancer risk factors have been identified that could potentially lead to the formation to a tumor in the stomach. Some of these stomach cancer causes or risk factors include:
There can be several early stomach cancer symptoms. However, the signs of stomach cancer could be present because of some other underlying condition as well. Unfortunately, this is the main reason why it is difficult to make stomach cancer diagnosis at an early stage.
Some of the early stomach cancer symptoms may include:
But just experiencing indigestion or heartburn after a meal does not really mean that you have cancer. Although, if you experience these symptoms a lot, talk to your doctor, who can decide whether to conduct further tests or not.
As advanced gastric cancer grow, you may experience more serious signs of stomach cancer, including the following:
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