1 in 5. Almost 20% may have pituitary tumors but most will remain undetected as they do not cause any symptoms. Those that grow large enough to cause symptoms due to size or secrete enough of one of many hormones that the pituitary normally secretes may need to be treated with medicines or surgery. Prognosis is generally good. Visit: http://www. Ncbi. Nlm. Nih. Gov/pubmedhealth/pmh0001723/.
Fate. Our organs are very active. The cells throughout our body are stressed and need to be replaced. At times this replacement process gets out of control. Instead of normal replacement cells tumors may develop. Active glands are prone. Thyroid, adrenal, ovary, testes, pituitary, gi, lung, blood cells, all can suddenly convert to cancer. How we normally keep under control is a mystery.
Uncommon. Pituitary tumors are readily seen on MRI and the radiologist reading the study will look closely at the pituitary as well as the rest of the study so it is uncommon for a tumor to be missed. Movement during the MRI may create artifact that obscures the pituitary but that would prompt a repeat study.
Unlikely. If your physician ordered a brain MRI to look for a pituitary tumor due to symptoms that you reported, then the radiologist would specifically look for one. Thus, it is unlikely. If you're concerned, you can have your physician take a look at the CD of the brain MRI for a second opinion. Http://radiopaedia. Org/articles/pituitary-mri-an-approach.
Other rare causes. Growth hormone (GH) producing pituitary tumor is the primary cause for acromegaly. Other reported cases are rare, including: GH-releasing hormone producing hypothalamic tumor (an area above the pituitary) and ectopic GH production by neuroendocrine tumor or small cell lung cancer. Excess GH is also rarely secreted by certain lymphoma.
No. Diagnosing acromegaly involves 2 blood tests that measure level of insulin-like growth factor-1 (IGF-1) and oral glucose tolerance t\ (OGTT). Difficult to test level of growth hormone (GH) in acromegaly. Scan of head performed to confirm presence an adenoma in pituitary gland. If no tumor detected, a CT scan of abdomen and pelvis looks for tumors of adrenal, pancreas or pvary producing GH.
Labs. Blood testings can determine if the tumor is increasing or decreasing hormones production/secretion.
Imaging and hormones. The pituitary controls most of the hormones in the body. When the pituitary is either too active or not working well, the hormone levels will show a major problem. Then specific imaging can be done to look carefully at the pituitary to look for a region of tumor. These tests should be done under the supervision of an expert in hormones - an endocrinologist.
It depends. Often a first step is tumor removal (and obtaining a biopsy specimen), now frequently performed as an endoscopic surgery through the sinuses, usually done by both an ENT surgeon and a neurosurgeon. Tumors which make pituitary hormones may shrink or stabilize with oral medication. Large or aggressive tumors may require targeted radiation therapy, e.g. Cyber knife, after (or instead of) surgery.
Medicine or surgery. If the tumor is secreting a hormone, it could be treated with medication and or surgery. If it is greater than 1.0 cm and growing, it is most often treated with surgery. Once in a while, radiation is used to treat such tumors.
No. Pituitary tumors can be benign adenomas (non-cancerous) or malignant carcinomas (cancerous). Also, many tumors are bland tumors whoch grow into the neigboring tissues an cause symptoms (headaches, viusal changes, etc). Other tumors secrete hormones and cause distant effects on other organs such as the adrenal glands for example.
Tough question. Tumors of the pituitary vary almost as much as the type of people who ask questions to health tap. Think of the pituitary as an attachment of the brain that receives information and sends messages in the form of hormones throughout the body. Abnormal growths can occur within and around this gland as well as excessive growth due to too much or too little information and hormone in and output.
Pituitary tumors. Most are Adenomas. They can be Micro or Macro, depending on size. They can be Functional such as Prolactinoma, or Non-functional.
Don't know. Most pituitary tumors occur spontaneously without any underlying known cause.
Loss of control. The cells of our pituitary gland are constantly producing and simulating and functioning within defined limits. Sometimes, these limits break down with a loss of control. The exact cause for this loss is unclear. But when it occurs, the normal function gets out of control, normal growth gets out of control, and normal production gets out of control. These collections of cells become tumors.
Labs and imaging. Labs (blood draw) will tell if it's a functioning tumor. Imaging studies (MRI) will show how big and what it looks like.
MRI, blood tests. The most accurate way to diagnose a pituitary tumor is by mri. Some pituitary tumors secrete hormones. Blood levels of these hormones may be checked to help diagnose a pituitary tumor as well. A tumor may be suspected if one's visual field is restricted (loss of peripheral vision).
MRI and labs. Blood tests can confirm if the tumor is actively producing extra hormones but MRI of the pituitary is the main study to visualize the actual tumor.
Most accurate. Is MRI brain, with and without contrast hormone tests determine whether growth is secreting too much or too little pituitary hormones.