A carcinoma-like tumor that behaves less aggressively than carcinomas. Usually carcinoids of the appendix are coincidental findings and have not spread until greater than 2 cm in diameter. Over 95% of appendiceal carcinoids are less than 2 cm in size.

In general, it can take 3-5 years and even up to 10 or longer for carcinoid tumors to grow. These are generally very slow-growing tumors. Serotonin is a chemical proFcoduct produced by some carcinoids in various amounts. It does not regulate the tumors. When in large amounts, it causes symptoms but in any amount, it is a useful marker for the presence of each tumor. 5HTP is the chemical precursor (for the substance) from which serotonin is made and is also a useful marker sometimes.

It is not 100% certain. In fact, the urine 5HIAA test will miss 50% of cases. Therefore other tests are usually done in conjunction with this tests. Among the most common test done for diagnostic purposes are; blood serotonin and blood chromogranin A. Other tests such as substance P, VIP may also be done. Every last trace of octreotide and the isotope Indium 111 used in the OctreoScan are gone from the body within 1 week. There is no effect on conception thereafter.

Carcinoid is a slow growing cancer. If it is all removed a person can be cured. However, there is always the risk of undetected microscopic cells remaining. These cells may show up after a number of years and would require chemotherapy or they could gradually kill a patient. The patient should be on periodic surveillance for at least 10 years. I recommend that you read the more comprehensive "Review of Carcinoid Disease" for a more in depth answer to this questions.

The meaning of the word tumor is a "lump" or a "swelling", and in medical language it is used to indicate an abnormal, uncontrolled growth in any part of the body. You may think of it as a group of cells which rapidly divide and do not recognize any rule or limit. The brain tumors are similar to the tumors of other organs. However, since the brain is the center of many critical functions, tumors arising in this organ have serious outcomes.

A mass or lump of extra tissue is called a tumor. It can be either benign or malignant. Benign tumors are not cancerous. Malignant tumors are cancerous.

Pheochromocytoma, Mast Cell Disease, Gastrointestinal Allergies, Vipoma, Medullary Carcinoma of the Thyroid, certain rare brain tumors and also certain rare neuropsychiatric disorders, to mention a few. What do I say to get my doctor to run the 5HIAA test I have been diagnosed with Carcinoid cancer. I have had only scans, blood tests, chemo, x-rays. I have gone downhill in the last 6 months, with much abdominal pain.

The answers below stem from the review of over 13,000.00 carcinoid cases covering five decades published in 2003, authored by Irvin Modlin and collegues what is the most common site of malignant carcinoid in body?--------- primary site is small intestine Also, the most common sites of regional spread for all carcinoids are lymph nodes and the most common site for distant spread for all carcinoids is the liver.

Neurokinin B is a nonspecific peptide hormonal substance sometimes co-secreted into the blood along with one of the other carcinoid products such as serotonin, chromogranin A, substance P and pancreatic polypeptide.

Carcinoid syndrome requires one or more of the following for laboratory confirmation of the diagnosis: increased blood serotonin with decreased blood tryptophan, increased chromogranin A and increased urine 5HIAA or indole-3-acetic acid . In spite of the symptoms, if these criteria are not present, carcinoid syndrome is not the diagnosis.

Many brain tumors may create complaints which force the patient to seek medical help. However, today more and more tumors are being recognized before they create complaints with the help of advanced radiological studies. These studies sometimes are performed for other reasons, and coincidentally lead to discovery of tumors. Even though the physician may find the effects of a brain tumor in the body, he/she can not feel or see them during a routine physical examination.

The most accurate, and sometimes the only way to accurately diagnose a brain tumor requires a biopsy. The surgeon performs the biopsy and the pathologist makes the final diagnosis, and can tell whether the tumor appears benign or malignant.

Benign probably is derived from the Latin word benigenus which means "a good kind" (bene= well, genus= born of, kind). In theory all benign tumors behave well and do not pose serious danger to the patient. Benign tumors are usually easily separated from normal tissues and therefore they can be removed surgically. However, tumors do not read books, so they are not aware of this sharp definition.

This word is derived from the Latin malignus which meant evil disposed, and is used as the opposite of benign. A malignant brain tumor is life-threatening. Malignant brain tumors possess certain chemicals which enable them to infiltrate into other tissues and spread into other parts of the body. Malignant tumors are almost impossible to remove totally by surgery, unless they are caught early in their course.

The tumor is usually soft and can be removed with small surgical instruments called curettes. In order to remove a large tumor through a small hole, the tumor itself has to be cut into small pieces. As the surgeon cores out the center of tumor, the peripheral margin of the tumor has to fall into an area that can be reached by the surgeon. In Cushing's disease, the tumor is usually small, often too small to be seen on an MRI scan.

The most common symptoms include headaches, which can be most severe in the morning; nausea or vomiting, which can be most severe in the morning; seizures or convulsions; difficulty thinking, speaking, or finding words; personality changes; weakness or paralysis in one part or one side of the body; loss of balance; vision changes; confusion and disorientation; and memory loss. Different parts of the brain control different functions, so symptoms will vary depending on the tumor’s location.

Some brain tumors are cancerous and some are not. Malignant tumors are considered cancer. Two of the most common forms of brain cancer are metastatic brain tumors (brain metastases) and glioblastoma multiforme (GBM). Brain cancer cells mutate and lose their normal form or structure. This is called anaplasia. The degree of anaplasia helps to forecast a tumor's growth potential. The most rapidly growing tumors have the highest degree of anaplasia. Benign tumors are not considered cancer.

A brain tumor diagnosis usually involves several steps, which can include a neurological examination, brain scan(s) and/or a biopsy. A neurological examination is a series of tests to measure the function of the patient's nervous system and physical and mental alertness. If responses to the exam are not normal, the doctor may order a scan or refer the patient to a neurologist or neurosurgeon, who will then order a scan. A brain scan is a picture of the internal structures in the brain.