A pituitary tumor is an abnormal growth of pituitary cells. Pituitary tumors can either be nonfunctional (that is they do not secrete hormones) or produce specific hormones, such as prolactin (causing infertility, decreased libido, and osteoporosis), growth hormone (causing acromegaly), ACTH (causing Cushing's), TSH (causing hypothyroidism), or be nonfunctional (that is they do not produce hormones).

No, in over 99% of patients, this is NOT a cancer; it is benign. Although the tumor is benign, it can cause problems because of its size, because it causes the normal pituitary gland to become underactive (hypopituitarism) or because of excessive hormone production by the tumor.

This depends on the type of tumor and the size of the tumor. A large tumor may cause loss of vision, particularly peripheral vision, if it compresses the optic chiasm (where the optic [eye] nerves converge). Headache may also occur; the type of headache varies from patient to patient. Headache may occur with a large or a small tumor.

The pituitary gland is NOT in the brain and pituitary tissue is different from brain tissue. Since the pituitary gland is located at the base of the brain and is connected to the brain by a thin stalk, there is often confusion, particularly by insurance companies, about the classification of a pituitary tumor. A pituitary tumor is NOT a brain tumor.

Technically, yes. A tumor is cancerous if it will spread, or metastasize, beyond it's original site to other parts of the body. Primary brain tumors rarely, if ever, spread outside the brain, so they are not technically cancer. However, psychologically and practically, brain tumors are a lot like cancerous tumors.

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.

Cancer usually forms as a tumor, but not in all cases. Some cancers, such as leukemia, do not form tumors. Instead, these cancer cells involve the blood and blood-forming organs and circulate through other tissues where they grow. In fact, not all tumors are cancerous. Benign (noncancerous) tumors do not spread to other parts of the body (metastasize) and, with very rare exceptions, are not life threatening.

Prolactin-producing tumors are most successfully treated with medical therapy (pills). In over 90% of patients, medical therapy reduces tumor size and blood prolactin levels. In approximately 8-10% of patients, medical treatment is not completely effective and surgery may be necessary.

Pituitary tumors are common. In autopsy studies of patients who did not have known pituitary disease, as many as 26% had a small tumor (adenoma) in the gland. Molecular biology studies have shown that a change in the DNA of pituitary cells can cause unregulated growth of a particular cell type resulting in a pituitary tumor, called an adenoma. There are no known environmental causes. Very uncommonly, pituitary tumors may be inherited.

No although the tumor may be in the area of the pituitary. A craniopharyngioma arises from abnormal development of the pituitary gland during fetal (in the womb) development. It may be located within the pituitary gland or above the pituitary gland. This is a tumor that one is born with and may enlarge at any time even in people over 60 years of age. It is not a cancer although some tumors can grow quickly and may return after surgery.

I first had cushings about 15 years ago lately I have been having symptoms of irritability, deep stretch marks in the bends of my elbows and bone fatigue. I have just lost 75 lbs and have become diabetic, also I have high cholesterol for the first time.

Biopsies are performed with some types of eye cancers, for example eyelid tumors, but are not recommended for choroidal melanomas. Fine-needle biopsy of a suspected melanoma is rarely done because the risks far outweigh the benefits. Tumor seeding (spread of the cancer cells) has been reported with fine-needle biopsy. Experienced ocular oncologists can diagnosis ocular melanoma without a biopsy.

Phyllodes tumors are made up of a mixture of the fibrous tissues and lining cells of the breast and so they are sometimes called fibroepithelial tumours. They range in their behaviour from being completely benign (non-cancerous) to malignant (cancerous) growths. The majority, however, are benign tumours. Even the malignant tumours tend to stay confined within the breast, only a minority, perhaps 1 in 3 to 1 in 4, spreading elsewhere in the body.

In general, no. There are no specific medical treatments for this type of tumor. The best treatment is surgery to remove the tumor. Bromocriptine has been used in a few patients who could not have surgery. In this situation, a small minority of patients have had some improvement in vision because of slight reduction in tumor size and relief of pressure on the optic chiasm (eye nerves responsible for vision).

The tumor causes the gland to produce too much growth hormone. This, in turn, stimulates the liver to produce too much IGF-1, which causes the excess tissue growth.

The pituitary is a small, pea-sized gland located at the base of the brain that functions as "The Master Gland." From its lofty position above the rest of the body it sends signals to the thyroid gland, adrenal glands, ovaries and testes, directing them to produce thyroid hormone, cortisol, estrogen, testosterone, and many more. These hormones have dramatic effects on metabolism, blood pressure, sexuality, reproduction, and other vital body functions.

Throughout this web site, the words TUMOR and CANCER are used interchangably. Technically, a tumor is just a swelling which may or may not be a cancer. Cancer is a disease of uncontrolled cell growth which can be benign (not invasive and does not spread) or malignant (usually invasive into surrounding tissue and capable of spreading to other areas of the body).

Spinal tumors are uncommon. They are divided into several groups according to their source and their location. Metastatic tumors: These are tumors that have spread from somewhere else in the body. Lung cancers, gastrointestinal tumors, breast tumors, kidney tumors, myelomas and other cancers can spread to the spine. These usually affect the vertebral bones. If the diagnosis is known, the treatments are usually non-surgical. Chemotherapy and radiation treatments are most commonly used.

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.

Tumors are abnormal masses of tissue that form when cells begin to reproduce at an increased rate. The liver can grow both non-cancerous (benign) and cancerous (malignant) tumors.