Brain cancer can interfere with normal brain functions such as speech, movement, thoughts, feelings, memory, vision, and hearing. It is a disease of the brain in which abnormal, cancerous cells grow in the brain tissues. Typically, brain cancer is a developed form of a brain tumour. Primary brain cancer or a brain tumour develops from cells within the brain.

However, all brain tumours are not brain cancer. But one thing to note is that even benign tumour can cause serious problems by increasing intracranial pressure or obstruct vascular structures or cerebrospinal fluid flow in the brain.

Different types of cells in the brain such as gliomas, meningiomas, pituitary adenomas, vestibular schwannomas, and primitive neuroectodermal (medulloblastomas) can become cancerous. Gliomas have several subtypes, which include astrocytomas, oligodendrogliomas, ependymomas, and choroid plexus papillomas.

Types of Brain Cancers

There are two types of brain cancer, including:

• Primary brain cancers: Primary brain cancers result when cancer cells develop in the tissues of the brain itself. Primary brain cancer cells may travel short distances within the brain but generally would not travel outside of the brain itself.
• Secondary brain cancers: Secondary brain cancer is called metastatic brain cancer. It occurs when cancer develops elsewhere in the body and spreads to the brain. Primary cancer tissues can spread via direct extension, or through the lymphatic system or through the bloodstream.

Metastatic cancer in the brain is more common than primary brain cancer. They are usually named after the tissue or organ where cancer first develops. Metastatic lung or breast cancer in the brain is the most commonly found brain cancers.

Brain Cancer Causes

The exact brain cancer cause is still unknown. However, its occurrence has been linked to several risk factors, including the following:

• Exposure to radiation
• HIV infection
• Inherited abnormality
• Smoking
• Exposure to environmental toxins
• Exposure to chemical toxins, especially those used in rubber industry and oil refinery

Brain Cancer Symptoms

Some types of brain cancers such as meningeal and pituitary gland may produce few or no symptoms. Some of the brain cancer symptoms typically experienced by patients include:

• Difficulty walking, seizures, dizziness and vertigo
• Extreme fatigue and muscle weakness
• Severe headaches and blurry vision
• Sleepiness, nausea, and vomiting
• Reduction in mental alertness, capacity or memory
• Difficulty in speaking, impaired voice or inability to speak
• Personality changes and hallucination
• Weakness on one side of the body and coordination problems
• Reduced touch sensation

The recent advances made in breast cancer treatment have revolutionized the way how women from this rare disorder are diagnosed and suggested a personalized treatment plan. These advances have made it easier for the doctors to arrive at a treatment plan, which is most suitable for the patient as per their individual characteristics and needs.

Different breast cancer treatment options help destruct complex mixture of cancer cells, which are otherwise difficult to treat using conventional breast cancer treatment. The treatment is started by the doctors handling the case as soon as the breast cancer diagnosis is confirmed.

Before the article delves into the different breast cancer treatment options, lets first take a look at how breast cancer develops and what are its symptoms and diagnosis methods.

Breast cancer: What do the statistics say?

Breast cancer primarily affects females aged above 40. However, that does not mean that it does not affect women aged below 40. Breast cancer can also affect males, although rarely.

Breast cancer starts in the cells of either one or both the breasts. It accounts for more than 16 percent of female cancer and contributes to 18.2 percent of all deaths that take place around the world because of cancer.

In the US alone, breast cancer affects more than 232,000 females and 2,200 males each year. It leads to death of more than 39,000 breast cancer patients in a year.

Breast Cancer Symptoms

The symptoms of breast cancer can be easily identified at home through breast self-examination. You should consult your physician on how to conduct this exam at home.

The most common breast cancer symptoms include:

• Change in the size or shape of the breast
• Lump in the breast
• Swelling in armpit
• Change in colour and shape of the nipples
• Rash, redness or pitting on the breast skink
• Pain in the breast or armpits
• Abnormal discharge from the nipples

In case of more aggressive breast cancer called inflammatory breast cancer, severe redness and itching may be present.

The patients are advised to contact their physician as soon as they notice any of the symptoms of breast cancer. The physician is the best person to diagnose whether it is normal or inflammatory best cancer, and accordingly, suggest treatment for breast cancer.

Breast Cancer Causes

The exact reason that causes breast cancer is unclear, despite the fact that every eighth woman suffers from it. However, there are several factors that have been associated with the development of breast cancer. Some of the breast cancer risk factors include:

• Prolonged use of birth control pills
• Obesity
• Use of hormone replacement therapy
• High breast density
• Alcohol addiction
• No history of pregnancy
• Pregnancy after 35
• Exposure to radiation

The risk of breast cancer naturally increases as women age. The risk is also higher in women who have a family history of breast or ovarian cancer, possess BRCA1 and BRCA2 genes or who have had their periods before the age of 12.

• Overconsumption of animal protein, saturated fats, and calories
• Low dietary fibre intake
• Overconsumption of alcohol
• Excessive smoking
• Family history of colorectal cancer
• Obesity
• Physical inactivity

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.

What is colon cancer?

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.

What causes colon cancer?

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:

Types of Colorectal Cancer

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.

Colorectal Cancer Symptoms

There are no early signs of colorectal cancer, but once it grows, the patients may experience the following colon cancer symptoms:

• Fatigue, weakness, and shortness of breath
• Change in bowel habits, including diarrhoea or constipation
• Blood in stool
• Abdominal discomforts such as cramps, bolting or pain
• Dramatic weight loss

Oral cancer, commonly referred to as mouth cancer or throat cancer, is an uncontrollable growth of cells in the oral cavity. It refers to cancer that develops in any of the parts that make up the mouth. It can include cancer of the lips, tongue, cheeks, the floor of the mouth, pharynx (throat), hard and soft palate and either of the sinuses. Mouth and oropharyngeal cancer can be life-threatening, but it could be prevented if the cancer is diagnosed early enough.

What Causes Oral Cancer?

Oral cancer is a result of a mutation in the DNA of the cells in the mouth. There are certain identified risk factors for mouth cancer that predisposes a person to oral cancer.

Some of the oral cancer risk factors include:

• Smoking: Smoking tobacco (cigarettes, cigars, and pipes) contains nitrosamines and other chemicals that are known to cause cancer. People who are exposed to passive smoking also experience a small increase in their risk of oral cancer.  
• Chewing tobacco: Use of any type of tobacco is one of the main reasons behind oral cancer. Chewing tobacco is not a safe alternative to cigarettes. It is a popular habit in parts of Asia and in some immigrant groups in Europe, North America, and Australia. The harmful substances in tobacco and betel can cause oral cancer.
• Alcohol consumption: Drinking excessive alcohol increases the risk of oral cancer. Using tobacco and alcohol both pose a much greater risk than using either of the substance alone.
• Poor diet: Lack of vitamins and minerals, such as iron or folic acid in the diet, can lead to a breakdown in the oral mucosa and this can make people more prone to oral cancer. People should eat plenty of proteins, vitamins, and minerals to decrease the risk of oral cancer. Fresh fruits and vegetables contain a lot of antioxidants, vitamins and other substances that help prevent damage to body cells.
• A family history of disease: There is a slightly higher risk of getting oral cancer in people who have a close relative who once had oral cancer.
• Human Papilloma Virus (HPV): HPV can contribute to some types of cancers, but it does not mean that people get these cancers like an infection. HPV can be passed on to another individual during a sexual contact, but for a majority of people, the virus is harmless and does not cause any trouble. Only a very small percentage of people with HPV end up developing oral cancer.
  
  

Oral Cancer Symptoms

There are some typical signs of mouth cancer that a majority of patients experience. Make sure to visit your doctor or dentist in case you experience any of the following signs of mouth cancer:

• Pain and discomfort in the mouth: Ongoing pain or discomfort from a long time in the mouth is the one of the most symptoms.
• Ulcers and sore: Bleeding ulcer or sore, which is not healing for more than two weeks can be a symptom of oral cancer.
• Unexplained bleeding: Unexplained bleeding in the mouth can be an alarming indication of oral cancer.
• Numbness and lost sensation: Numbness, loss of feeling or tenderness in any area of the mouth, or neck can be a symptom.
• White or red patches: Any abnormal looking patches in the mouth or throat could be a sign of cancer or precancerous changes. Although, a fungal infection called thrush can also be the reason for white or red patches.
• Difficulty in swallowing: You may feel difficulty in chewing and swallowing and feel like your food is sticking in your throat. Feeling difficulty in speaking or moving the jaw and tongue can be one of the most important throat cancer symptoms.
• Weight loss: Dramatic weight loss without any reason can also be a symptom.

Ovarian cancer refers to the abnormal growth of cells in the ovaries, which are an important part of the female reproductive system. Ovaries are two small glands, located on either side of the uterus. They help produce female sex hormones and store or release eggs. An ovarian tumor is it is the eighth most common type of cancer among women. It is the fifth most common cause of cancer deaths in women around the world. Ovarian cancer can be life-threatening if not diagnosed and treated on time, however, the chances of survival are great in the case of early diagnosis.

Ovarian cancer forms when normal ovarian cell growth fails, and there is an uncontrolled growth of cells. Most of the ovarian cancers arise from the lining cells (epithelium) of the ovary. The ovarian tumor can metastasize and spread to other organs of the body.

Ovarian Cancer: Causes

There is no identified and known cause of ovarian cancer. However, there are some risk factors associated with the disease. Family history (genetics) of ovarian cancer, older age, breast cancer, obesity, and endometriosis are some of the known ovarian cancer risk factors. Other than these, menstrual cycles play a major role in ovarian cancer. The high number of total lifetime ovulations, greater the risk of ovarian cancer.  That is, women who have had their periods before the age of 12 are at an increased risk of ovarian cancer.

The risk of ovarian cancer is also high in women suffering from familial melanoma, which is characterized by the presence of certain genes. These genes are inherited from parents and mostly occurs when two or more relatives suffer from the aggressive form of melanoma or skin cancer.

Signs of Ovarian Cancer

Typically, the symptoms of ovarian cancer are subtle during the early stage. However, the patients may experience signs of ovarian cancer once the cancer advances and starts to grow. The following are some of the ovarian cancer symptoms:

• Pain in the pelvis or belly

• Bloating

• Frequent and urgent urination

• Changes in bowel habits

• Nausea and fatigue

• Weight loss

• Breathlessness

• Loss of appetite

These signs of ovarian cancer can be confused with those of ovarian cyst. However, patients must know that ovarian cysts are far more common and primarily affects women during their childbearing age.

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.

The prostate is a gland in the male reproductive system, which makes fluid that forms an essential part of the semen. Prostate cancer starts when cells of the prostate glands begin to grow abnormally

Prostate cancer is one of the leading cancers in men above the age of 60. In most of the cases, it is slow growing and may even go undetected and do not cause any problem. However, in some cases, it could be aggressive and cancer cells can spread to other parts of the body (metastatic prostate cancer)

Prostate cancer is a very slow growing disease and starts with tiny alterations in the shape and size of the prostate gland cells. The prostate cancer risk increases with age and it is rarely observed before the age of 40. That is the main reason why many men die of old age, without ever knowing that they had prostate cancer.

Prostate Cancer Causes

There is no direct prostate cancer causes. However, there are some factors that can increase the risk of prostate cancer, including the following:

• Consumption of diet rich in red meat and high fat dairy products
• Less consumption of vegetables and fruits
• Obesity
• Family history of the disease
• Smoking and alcohol consumption
• Sexually transmitted infections

Types of Prostate Cancer

Usually, prostate cancer means the cancer of prostate gland cells called prostatic intraepithelial neoplasia (PIN). Almost all the prostate cancers are adenocarcinomas, but there are some other types of prostate cancer as well, including the following:

• Sarcomas
• Small-cell carcinomas
• Neuroendocrine tumors (other than small cell carcinomas)
• Transitional cell carcinomas

Prostate Cancer Classification

Based on how abnormal the patterns of cancer cells look, prostate cancers are classified as:

• Low-grade PIN: In this, the pattern of prostate cells appears almost normal
• High-grade PIN: In this, the pattern of cells looks a bit abnormal

Signs of Prostate Cancer

There are no warning signs of prostate cancer. The symptoms of metastatic prostate cancer usually appear first in the region that the cancer cells have invaded.

After cancer causes the prostate gland to swell, the following signs of prostate cancer may be experienced: 

• Frequent urination, especially at night
• Difficulty starting or stopping the stream of urine
• Weak urine stream and inability to urinate
• Pain and burning sensation during urination and ejaculation
• Blood in urine or semen

In prostate cancer stages, the following symptoms may also be there:

• Pain in spine, pelvis or ribs
• Leg weakness
• Urinary incontinence
• Fecal incontinence

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.

Types of Stomach Cancer

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 of the common types of gastric cancer include:

• Adenocarcinoma: It is the most common form of stomach cancer and about 90 to 95 percent of stomach cancers are This form of cancer develops from the cells that form the innermost lining (mucosa) of the stomach.
• Lymphoma: This is a rare form of stomach cancer and only about four percent of stomach cancers are lymphomas. These are cancers of the immune system tissue, sometimes found in the wall of the stomach.
• Gastrointestinal stromal tumor (GIST): It is a rare kind of tumor that starts in very early forms of cells in the wall of the stomach calledinterstitial cells of Cajal. GISTs can be found anywhere in the digestive tract.
• Carcinoid tumour: It is also a rare form of stomach cancer and about three percent of stomach cancers are carcinoid tumors. Carcinoid tumors start in cells of the stomach that produced hormones.

Some other types of stomach cancers include squamous and small cell carcinoma and leiomyosarcoma. These cancers are very rare.

Stomach Cancer Causes

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:

• Inflammation of the gut called gastritis
• Infection with common bacteria called Helicobacter pylori
• Long-lasting anaemia
• Growth in stomach called polyps
• Smoking
• Obesity
• Excessive consumption of smoked, pickled or salty foods
• A-type blood group
• Epstein-Barr virus infection
• Certain genes (family history of disease)

Stomach Cancer Symptoms

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:

• Heartburn
• Regular indigestion
• Slight nausea
• Loss of appetite
• Frequent burping
• Feeling bloated

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:

• Frequent stomach ache or pain in the sternum
• Frequent heartburns
• Vomiting containing blood
• Dysphagia (swallowing difficulties)
• Loss of appetite, accompanied by sudden weight loss
• Blood in stools
• Excessive fatigue
• Yellowish eyes or skin