Nasopharangeal cancer occurs when cancer cells develop in the tissues of the nasopharynx. Although this is a throat cancer it is not the same as others and has a higher risk. Some of the symptoms of this type of cancer include things such as difficulty breathing, speaking and hearing in addition to unexplained nose bleeds, headache, nose or throat lumps and ringing or pain in the ears. Chinese or Asian heritage as well as exposure to Epstein-Barr virus may also play a role in developing nasopharyngeal cancer. There are four stages of nasopharyngeal cancer.

Once it has been determined that an individual is infected with this type of cancer there are tests that need to be performed to determine if the cancer is confined to the nasopharynx or has spread to infect other areas. The process of determining this is referred to as staging. In the staging process information is gathered and then used to confirm what stage of the disease a person has. This is important in order to properly plan a successful course of treatment for the cancer. In many cases the same tests used to confirm the presence of this disease are also used to determine the stage.

Stage I

In the first stages of nasopharyngeal cancer the cancer is limited only to this particular area.

Stage II

This stage is separated into two sections. In stage II-A the cancer has progressed from the nasopharynx to the middle of the throat which includes the tongue, tonsils and nasal cavity. Stage II-B means the cancer has spread to lymph nodes on one side of the neck.

Stage III

This stage means the cancer has spread even further to include lymph nodes on both sides of the neck, the nasal cavity, areas around the pharynx, or nearby bones.

Stage IV

This stage is separated into three sections. Stage IV-A of this type of cancer means that the cancer has affected areas beyond the nasopharynx and possibly even the nerves of the cranium, as well as the bottom of the throat, jaw, eye bones and lymph nodes. Stage IV-B means the cancer has now progressed to include the collar bone. Stage IV-C is the last of the stages of nasopharyngeal cancer and indicates that the cancer has now moved beyond the lymph nodes to infect other parts of the body.

There are three basic ways that a cancer may spread throughout the body. These ways include tissues, lymph system and blood. Once tissue has been infected it can spread beyond that to infect healthy tissue surrounding this area. When cancer gets into lymph nodes it can move through these vessels to other areas. After the blood is infected the cancer can use the blood vessels to travel throughout the body.

More than 75% of individuals who develop lung cancer have one variety or another of NSCLC. This type of cancer is subsequently divided into different subtypes based on the type of cancer cells that are found.

Squamous cell carcinoma

It is the subtype of cancer that develops when cells located in the airway grow too fast and quickly become out of control. This in turn leads to malignant tumors forming in the lungs causing serious damage. Because this area has a regular movement of fluids such as blood, it can often spread to other parts of the body.

Large cell carcinoma

It can form in any part of the lungs. The tumors that result from this do not have the general make-up of other cancerous cells therefore it is different to other subtypes of NSCLC. Large cell carcinoma also grows and spreads faster than of the other subtypes of NSCLC.

Adenocarcinoma

It happens when the cells that make mucus in the lungs begin to grow too fast and result in the development of a tumor. In most cases this subtype of NSCLC stays in one general area.

Because smoking is thought to be the cause of most cases of non-small cell lung cancer cases, it is suggested that smokers are at a much higher risk of developing this disease over individuals who do not smoke. Heavy smokers are said to be at an even greater risk of developing this disease. Smoking however is not the only risk factor to consider in the issue of NSCLC. Some other factors include asbestos exposure, fatigue and defective genes that may be passed down by parents or grandparents. Radon, which is a gas containing radioactive vapors is also thought to be a risk factor, so if you endure exposure to this and you smoke your risk may be significantly higher than a person who is only exposed to one or the other.

Because symptoms of this disease are usually manifested in direct relation to the lungs, it is believed by many that persistent cough, difficulty breathing and pain in the chest may be signs of NSCLC. If an individual experiences these symptoms they should see a doctor so tests can be done to confirm this and begin treatments.

There are four basic tests that can be used to confirm the onset of NSCLC. These tests include physical examination, chest x-ray, CT or computerised tomography scan and bronchoscopy.

Non-small cell lung cancer is one of the most common varieties of lung cancer with thousands of people developing it every year. Early detection of NSCLC is vital to the treatment of this condition. The earlier it is detected the more successful the treatments will be.

The research work endeavoured at building off the previous research that revealed the greater resistance of cancer stem cells to the effects of radiation therapy in comparison to the other cancer cells.

The Duke researchers recognized a well-known signalling pathway known as Notch as the possible cause for the enhanced resistance. Notch additionally operated in healthy stem cells where it is vital for inter cell communication that manages cell proliferation and separation processes. The study was printed in the end of November edition in the journal ‘Stem Cells’.

Jialiang Wang, Ph.D., the lead author and a research associate at the Duke Division of Surgery Sciences and the Duke Translational Research Institute stated that this discovery has made the Notch pathway a striking drug objective and the appropriate drug could be capable of halting the offenders, the glioma stem cells.

Wang mentioned that stem cells present in a cancer are the basis of cancer cell propagation. Cancer stem cells numbering in hundreds could swiftly turn into a million.

The researchers from Duke in partnership with a team headed by Dr. Jeremy Rich, Cleveland Clinic, employed drugs known as gamma-secretase inhibitors which targeted a key enzyme that was engaged in Notch signalling pathway on gliomas in a laboratory setting. Such inhibitors are under study by many researchers for their capacity in combating tumors in whom Notch is anomalously triggered like in leukemia and tumors of the breast and brain.

Dr. Bruce Sullenger, the senior author and the Vice Chair for Research in Duke and the Professor of Surgery, Dorothy W.Beard expounded that in their study gamma-secretase inhibitors solely were able to only somewhat slow down the tumour cell proliferation. However, when they observed these molecules in combination with radiation at clinically pertinent dosages, this blend lead to enormous cell fatalities in the tumors and considerably lowered survival in glioma stem cells. Such findings mostly associate with improved tumor control.

Wang stated that in-progress clinical trials are evaluating gamma-secretase inhibitors as individual therapy for breast and brain tumors. Their study indicates that Notch inhibition employing such drugs would offer noteworthy remedial advantages when coalesced with radiotherapy. Wang was hopeful that imminent research would study this coalesced therapy in this susceptible patient populace. Wang stated that more effectual radiation could be achievable when they could halt Notch signalling in the tumor stem cells.

Molecular signal paths which fuel stem cell division are usually similar to those active in tumour development. This has a limiting effect on the probability of cancer treatment as the drugs that annihilate cancer cells additionally are known to mostly have adverse effects on the body’s normal cells, especially the stem cells.

A new-fangled study from Karolinska Institute, carried out in partnership with a global team of researchers headed by Professor Jonas Frisen, is presently laying emphasis on an exclusion that could make it likely for treating a kind of colon cancer.

The outcomes concerning a set of signal proteins known as EphB receptors. These proteins encourage the division of stem cells present in the intestine and could be major contributors to the development of adenoma or polyps that are known to bear a risk of cancer. Ironically, these equivalent proteins additionally thwart the uninhibited growth of the adenoma and it turning cancerous.

The novel outcome reveal that EphB control two detached signal paths, one of which encourages cell division and the other being to curb the cell’s capacity to turning malignant. Employing this understanding, the scientists have detected a drug substance known as imatinib that could hamper the first signal path while having no affect on the other shielding path.

Imatinib or an analogous substance could probably be employed for averting the growth of cancer among individuals in the risk area for colon cancer rather than intestinal resection.

Imatinib has till now proven to hamper cell division in tumour cells present in the intestines in vitro and among mice. The substance is a constituent of the drug Glivec that is employed among other substances for treating other kinds of leukemia. Could it additionally be employed for treating adenoma and colon cancer among humans is still to be observed. The company that produces the drug has not backed the study.

Cladribine is a cancer or antineoplastic medication for treating a form of blood cancer (Hairy Cell Leukemia) that hinders the spread of cancer cells, retarding their growth and proliferation in the body. Cladribine, however, has been additionally employed for other purposes.

Likely Side effects of cladribine (Cladribine Novaplus, Leustatin)

In case one is experiencing any of the below stated grave side effects, then it is vital to seek prompt medical assistance or get in touch with one’s doctor urgently.

• An allergic reaction characterised by shortened breath; feeling a restricted or closed sensation in the throat; breathing distress; the lips, face or tongue swelling up or appearance of hives.
• Lowered functioning of the bone marrow and blood complications (intense weariness or exhaustion; abnormal bruising or blood loss; blackish, blood-inundated or tar-like stools; fever; getting chills, soreness in the throat, or symptoms of an infection.
• Muscular weakness.
• Reduced frequency of urinating or difficulty felt during passage of urine, presence of blood in the urine, or side pain.
• Fever.

Other less grave side effects could most likely occur. Hence, it is imperative to inform the doctor in case one is experiencing:

• Feeling nauseous, puking, diarrhea or pain felt in the abdomen
• Diminished appetite
• Appearance of rashes, scratchiness or hives
• Coughing
• Giddiness
• Headaches

There could be other side effects besides those mentioned above and one needs to keep one’s doctor informed regarding any unusually felt side effects or those that are particularly irksome.

Vital Information regarding Cladribine (Cladribine Novaplus, Leustatin)

Cladribine must solely be administered under the care and guidance of an experienced healthcare provider adept at using cancer chemo-remedial agents. Grave side effects inclusive of neurologic, kidney problems among others have been cited.

Contraindications of Cladribine

Prior to starting on cladribine, the doctor needs to be informed about whether one has:

• Lately had any inoculations
• Liver ailments
• Kidney ailments
• Problems concerning bone marrow

One might be able to start taking cladribine or might need a dose alteration or special surveillance during the course of the treatment in case one is having any of the above mentioned conditions. This translates to the fact that cladribine has been shown to cause congenital anomalies in the unborn child. Hence, it is important to firstly speak with one’s doctor in case one is expecting or could have the likelihood of getting pregnant during the course of the treatment.

It is still unclear whether cladribine could be passed into breast milk. Hence in case one is breastfeeding, it is crucial to firstly speak to the doctor and not take cladribine.

The manner of administration of Cladribine (Cladribine Novaplus, Leustatin)

Cladribine would be best administered in the presence of an experienced healthcare professional proficient in the usage of cancer chemotherapeutic agents.

The doctor would ascertain the appropriate quantity and regularity of the treatment with cladribine dependent on the kind of cancer that is being treated and other associated factors.

The doctor would mostly suggest undergoing blood analysis on a regular basis and other medical assessments during the course of the treatment using cladribine for monitoring improvement and side effects.

Skin that has been mistakenly been exposed to cladribine needs to be scrupulously cleansed with soap and tepid water.

The healthcare provider would be storing cladribine as per directions of the manufacturer. In case one is storing cladribine, then it is vital to adhere to the directions offered by the healthcare provider.

Overdose or Missed out on a Dose – What must one do?

In case, one misses out on a dose, then it is vital to inform the doctor about it.

In case of an overdose is doubted, then it is vital to promptly get medical assistance as the signs of overdose tend to be analogous to those of the side effects occurring due to the medication, however have greater intensity.

When Cladribine must be avoided

Cladribine could lessen the activity of the immune system making one more vulnerable to contracting infections. Hence, it is important to keep away from people that are having colds, flu or other kinds of communicable diseases and not to receive inoculations that have live viral strains (for instance live oral polio vaccine) while getting treated with cladribine. Additionally, averting contact with people that have lately been inoculated with a live vaccine as there is a likelihood of the virus getting transmitted to you.

Inadvertent exposure of the skin to cladribine injection must be carefully washed off with tepid water and soap.

Another crucial aspect is that one must not receive ‘live’ innoculations while undergoing treatment with cladribine as administration of a live vaccine could prove detrimental. There are other kinds of medications that could counteract with cladribine. Hence, one needs to speak to the doctor and pharmacist prior to obtaining any other kinds of prescription or over-the-counter medicines inclusive of herbal produce during the course of the treatment with cladribine.

Surgery

Surgery is the most prevalent form of treatment for Wilms’ tumor wherein the doctor might remove the cancerous growth employing one of the below stated procedures.

• Partial Nephrectomy – This procedure is conducted for removal of the cancer and a section of the kidney that is situated around it.  It usually is done in just rare cases when there is damage done to the other kidney or has previously been taken out.
• Simple Nephrectomy – This procedure involves the complete removal of the kidney. The other kidney would then take on the role of purifying the blood.
• Radical Nephrectomy – In this procedure there is total removal of kidney, adjoining tissues and some of the lymph nodes.

Chemotherapy

Chemotherapy is the usage of drugs administered in either pill form or intravenously for annihilating cancer cells. Chemotherapy is also known as systemic treatment as the drugs on entry into the bloodstream, pass through the body and can stamp out cancer cells all through the body .When chemotherapy is offered as a post-operative procedure then it is known as adjuvant therapy.

In case elevated doses of chemotherapy are employed for killing the cancer cells, then the high doses could mar the blood-producing tissue present in the bones or bone marrow. If elevated doses of chemotherapy are required for treating the cancer, then the bone marrow might be extracted from the bones prior to therapy and kept in the freezer till its need arises. Subsequent to chemotherapy, the bone marrow is intravenously reinstated. This is known as autologous bone marrow reinfusion.

Radiation Therapy

Radiation therapy makes use of X-rays or other forms of high-power rays for annihilating cancer cells and shrinking the tumors. Radiation done for treating Wilms’ tumor generally is given through a machine located outside the body, also known as radiation therapy. Radiation might either be employed prior to or following surgery and chemotherapy.

Some patients tend to develop a second, altered form of the cancer after several years due to the outcome of being treated with chemotherapy and radiation. On-going clinical trials are intended at ascertaining whether chemotherapy and radiation could be employed in lower doses.

Stage-Wise Treatment

Treatment offered is dependent on the stage of the tumor, cell type or histology and the child’s overall health condition and age. A standardised treatment is adopted on the basis of its efficacy in several patients in earlier studies or investigational. The doctor might suggest that the child partake in a clinical trial – a research project that involves new investigational treatments. Several patients do not seem to be cured using standard therapy and there may be undue number of side effects experienced with some of the standard treatments. Due to these reasons, clinical trials are intended for testing novel, better treatment alternatives.

Stage I – In case the tumor bears a ‘favourable’ cell type or the child is having anaplastic Wilms’ tumor, then surgery for removal of cancer would be the probable line of treatment followed by chemotherapy. Surgery and subsequently radiation therapy and chemotherapy would be the probable line of treatment in case the child is having either clear cell sarcoma of the kidney or rhabdoid tumor.

Stage II – In case the tumor bears a ‘favourable’ cell type, the treatment would mostly involve surgery for removal of cancer, after which chemotherapy would be given. In case the child is having an ‘unfavourable’ cell type like anaplasia, clear cell sarcoma or rhabdoid tumor of the kidney, then the treatment might include surgery that would be followed by radiation therapy and chemotherapy.

Stage III – The treatment would possibly be surgery after which radiation therapy and chemotherapy would be given. At times, it is not possible to remove the cancer via surgery as it is located in close proximity to vital organs or blood vessels or due to its overbearingly large size. In such situations, only biopsy is conducted following which chemotherapy might be suggested that may or may not include radiation. Subsequent to the cancer being minimised by treatment, surgery would be conducted, that would be followed by further chemotherapy and radiation therapy sessions.

Stage IV – The line of treatment would generally be surgery that would be followed by radiation therapy and chemotherapy. In case there has been cancer metastasis or the cancer spreading to the lungs, then further chemotherapy sessions might be given.

Stage V – If cancer has metastasized to both the lungs, generally it is unfeasible to remove both the kidneys. A portion of the cancer from both the kidneys and adjacent lymph nodes might be removed for checking the presence of cancer. Subsequent to surgery, chemotherapy is conducted for shrinking the tumor. Following reduction of the cancer, a second operative procedure might be conducted for removing major parts of the cancer, while attempting to leave as much part of the kidneys as possible. Surgery might be followed by additional chemotherapy and radiation therapy.

Persistent – In case the cancer has relapsed in the child, the treatment offered would depend on the treatment previously offered, the amount of time transpired following the last treatment, the type of the cancer cells and the location of its re-emergence. Based on these factors, treatment would comprise of surgery, radiation therapy and chemotherapy.

Clinical trials, investigative projects that involve patients, aid in assessing novel treatments, like chemotherapy drugs, novel blends of treatments and bone marrow reinfusion.

Though retinoblastoma might surface irrespective of age, it is generally observed among infants below 5 years. The tumor might affect one or both the eyes, though it is quite atypically noted to metastasize to the adjacent tissues or other areas of the body. Retinoblastoma is generally detected in just one eye and could generally be treated.

Retinoblastoma  – Due to gene mutation transferred to the off-spring

Retinoblastoma is at times inheritable. When it occurs due to inherent gene mutation, it is known as hereditary retinoblastoma. It has generally been observed to affect the younger age bracket than retinoblastoma that is non-inheritable. Retinoblastoma occurring in just one eye is generally non-inherent in nature. Retinoblastoma occurring in both eyes is always genetic. Hereditary retinoblastoma initially occurring in just one eye is likely to imminently affect the other eye. Following detection of retinoblastoma in one eye, follow-up examinations must be carried out at regular intervals of two to four months for no less than twenty-eight months. On conclusion of the retinoblastoma treatment, it is crucial that follow-up examinations be continued till the child reaches five years of age.

Treating both kinds of retinoblastomas must comprise of genetic advice being furnished by trained professionals regarding genetic diseases. Siblings of an infant that has retinoblastoma would also need to be regularly examined by an ophthalmologist and genetic counselling sessions be offered regarding the risks of getting cancer.

Infants having hereditary retinoblastoma more prone to trilateral retinoblastoma and other cancers

An infant with hereditary retinoblastoma is more prone to pineal tumors that might develop in the brain. This is known as trilateral retinoblastoma. Timely follow-up examinations employing Magentic Resonance Imaging (MRI) or computerised tomography (CT) scan for checking for this atypical condition is crucial while treating retinoblastoma and must be consistently followed till the child is five years of age. Children having hereditary retinoblastoma are also more prone to contracting other kinds of cancers during the later part of their lives.

Retinoblastoma Symptoms:

• The pupil of the eye appearing white rather than red when any light is focused on it. This might be perceivable in flash snaps of the infant.
• Eyes seem to looking in diverse directions.
• Pain and discomfort experienced in the eye and reddening.

Diagnosis & Tests:

The below-stated test and procedures could be conducted:

• Physical examination: During the physical exam, the body is checked for overall signs of health inclusive of any symptoms of diseases like lumps or any dubious occurrence. The person’s history in reference to family history, past medical conditions and health habits are also probed.
• Eye examination with pupil dilatation: Pupil dilatation or opening wider by using medicinal eye drops aids in easier viewing via the lens and pupil to the retinal area. An examination of the inner area of the eye inclusive of the retina and the optic nerve is carried out using an illuminated source. Dependent on what the age of the child is, the examination is performed after administering anesthesia.
• Ultrasound Examination: During this procedure echoes are produced by the high-energy ultrasound or sound waves that rebound off the surfaces of internal tissues or organs. These echoes form an image of the tissues it bounces off known as sonogram.
• CAT or CT scan: During this procedure, arrays of high-definition images of the internal organs like the eye are produced from varied angles by linking an x-ray machine to the computer. An intravenous dye injection might be given or ingested so that the images of the organs or tissues appear more lucidly on the CAT scan also referred to as the computed tomography, computerised tomography or computerised axial tomography.
• MRI (magnetic resonance imaging): Employing a magnet, radio waves and a computer, a series of in-depth images of the internal organs of the body like the eye are taken. Such a procedure is also known as NMRI or nuclear magnetic resonance imaging.

Retinoblastoma is generally detected without the need of carrying out a biopsy (tissue/cell removal for microscopic analysis to diagnose for the presence of cancer).

Prognosis (likelihood of recovery)

The prognosis or chances of recovery and the treatment choices hinge on certain below stated factors like:

• The staging of the cancer.
• The chances of saving eyesight in one or both the eyes.
• The extent and the amount of tumors.
• If trilateral retinoblastoma comes about.

How the Test is conducted

The test procedure is carried out in the operation theater in a hospital or in an outpatient-basis surgical facility. The sample could be taken in the following two ways, namely:

• Needle biopsy.
• Open biopsy.

Needle biopsy – In this procedure, a needle is inserted inside the dubious lymph node. The patient is required to lie down on the inspection table. A thorough cleansing of the biopsy spot is done, following which the health care provider would administer a local anesthetic injection that would lead to deadened sensation in that area. The biopsy needle is then introduced into the node, and a sample is taken out. Localized pressure is applied on the spot to bring the bleeding to a halt and a dressing is done on the site.

Open biopsy – This is a form of surgical intervention for total or partial removal of the lymph node. One would be required to lie down on the inspection table. A tranquilizer might be administered to put the patient under sedation, if needed. A careful cleaning of the biopsy spot would be carried out followed by a local anesthetic injection administered to numb the area. Sometimes, general anesthesia is given that would put one to sleep and make the procedure pain-free. A tiny surgical incision would be made through which the entire lymph node or a section of it is removed. The site is sutured and a dressing done.

Subsequent to the sample being drawn, it is sent for lab analysis.

Preparation for the Test

One needs to keep one’s health care provider informed in case of the presence of any of the following:

• Pregnancy.
• Any form of drug allergy.
• Bleeding issues.
• The kind of medications being consumed inclusive of any form of supplements or herbal medicines.

One would be required to sign an assent form.

The experience of undergoing the Test

Subsequent to the administration of the local anesthesia, a jab mark and slight stinging sensation is felt in that area. The biopsy spot would continue to remain tender and painful for the next few days following the testing procedure.

Reasons for Performing the Test

The test is conducted to assist in determining the reason behind the swelling in the lymph glands. It might be conducted to detect whether the lymph node has either a malignant (cancer-forming) or benign (non-cancer forming) nature.

Normal Outcome

A swelling in the lymph nodes might be due to the presence of varied conditions that could range from mild version to cancer-forming kinds.

Deciphering an Abnormal Outcome

An irregular test result could be because of the presence of a host of conditions that might lie between quite mild to cancerous.

For instance, an enlargement in the lymph nodes might be because of:

• Hodgkin’s lymphoma – A cancer affecting the lymph tissue originating in the lymph nodes, spleen, liver, bone marrow and other locations.
• Infection.
• Non-Hodgkin’s lymphoma – A lymphoid tissue cancer that involves the lymph nodes, spleen and other immune system organs.
• Sarcoidosis – a disease of unidentified cause leading to inflammation due to the development of lumps known as granulomas that have a major effect on the different organs of the body.

Possible Risks

• Bleeding.
• Chances of infection.
• An injury to the nerve in case the biopsy is conducted on a lymph node in close proximity to the nerves.