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Frequently Asked Questions

Will all Pituitary adenoma produce field defects ?

Neuroophthalmology FAQ
No. The Pituitary adenoma has to grow considerably (approximately 10 mm above) to press on the chiasma to produce field defects.
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What is a pituitary adenoma?

Pituitary Tumor Treatment Center FAQ - UCSF Department of Ne...
A pituitary adenoma is a tumor-that is, a growth of tissue in which cells multiply in an uncontrolled manner. Adenomas are located just next to, or within the pituitary gland. The adenoma can be much smaller than the gland when the symptoms it causes become noticeable and the adenoma is diagnosed. Most pituitary adenomas are 'microadenomas', which measure 3 to 9 mm (1/8 to 3/8 of an inch) in diameter, although a few patients have 'macroadenomas', which are 10 mm or larger in diameter.
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Pituitary adenomas cause most cases of Cushing's syndrome. They are benign, or non-cancerous, tumors of the pituitary gland which secrete increased amounts of ACTH. Most patients have a single adenoma. This form of the syndrome, known as "Cushing's disease", affects women five times more frequently than men.
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Will not then an early pituitary adenoma be undetected ?

Neuroophthalmology FAQ
No, It can produce endocrine problems by which it may be suspected and then subsequently detected by CT scan.
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I have been told I need surgery for a pituitary adenoma. What does this mean?

Pituitary Network Association - Disorders - Transsphenoidal ...
Pituitary adenomas are benign tumors which arise from the pituitary gland itself. They are almost never malignant. Pituitary tumors can be either secretory or non-secretory, referring to whether they overproduce pituitary hormones. Secretory tumors cause disease because of the excess quantities of hormones which they secrete (release) into the bloodstream. The most common type of secretory pituitary tumor is termed a prolactinoma.
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What are the causes of the visual field defects?

Neuroophthalmology FAQ
Scotoma is a non seen area within a seeing area. It can be due to disorders of the optic nerve, the nerve which connects the eye to the Brain or Macular Problem-The Central area within the eye which is responsible for central fixation of the eye. Homonymous means same side of the visual field in both eyes . This occurs in the back of the brain where part of the nerve fibers from both the eyes join.
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Will my field defects go away?

Neuroophthalmology FAQ
It depends on the type of field defect and the cause of the field defect. Pituitary adenoma when removed may produce complete resolution of field defects if removed early enough. However Infarction to the brain (loss of blood supply) may produce a permanent field defect which may be difficult to resolve. Very occasionally early treatment with injections like Heparin (which lyses the clot) can cause resolution of the field defects produced by blockage of blood supply.
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What is the pituitary?

Pituitary Network Association - FAQ
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.
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What is the risk of defected spermatozoons to produce babies with defects?

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Basically non, speramtozoons morphology refers to the capacity to fecund the ovule . There is no relation between this and the genetic information of sperm , which is the one that contributes to forming the baby .In fact, more than 4000 babies have been investigated after ICSI with highly normal and defected spermatozoons , malformations rates in these children is equal to those for the general public
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Does my pituitary gland sometimes produce a small amount of the hormone, even if I have CDI?

Frequently Asked Questions-Page 3
In some patients with CDI, the pituitary is able to produce small amounts of the hormone as, for example, when they smoke or become dehydrated. However, the variability in the duration of action of the dDAVP in you is probably due mainly to variability in the efficiency of adsorption. Colds, sinusitis, or even a little hay fever markedly impair the absorption of the drug from the nasal mucosa and result in much shorter durations of action.
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What is a pituitary Tumor?

Pituitary Network Association - FAQ
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).
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What are pituitary tumors?

Frequently Asked Questions about Pituitary Cancer
A pituitary tumor is a tumor that begins in the pituitary gland. Most pituitary tumors are not cancer. In fact, cancerous pituitary tumors are so rare that state and national cancer agencies keep no record of how many people get them each year. Benign (non-cancerous) pituitary tumors are also rare. About 3,000 people get them each year.
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What is the pituitary gland?

Frequently Asked Questions about Pituitary Cancer
The pituitary gland is a small gland located behind the nasal sinuses and above the roof of the mouth at the base of the skull. It is connected to the hypothalamus, a part of the brain. Together, the two control the production of many of the important hormones in the body. The pituitary gland sits in a tight bony space and has little room to grow or expand when swollen or if there is a tumor.
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Is this something associated with the damage to my pituitary gland?

Frequently Asked Questions-Page 4
CDI itself does not interfere with menstruation or fertility. However, it may be associated with these or other problems if the disease or injury that caused the DI also damages adjacent parts of the brain or pituitary where other hormones are normally produced. Head trauma is one of the things that can cause this kind of collateral damage, but it does not always do so. Therefore, each patient with CDI must be evaluated separately to determine if any of the other hormones have been affected.
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What are the most common birth defects?

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One of every 33 babies is born with a birth defect. A birth defect can affect almost any part of the body. The well being of the child depends mostly on which organ or body part is involved and how much it is affected. Many birth defects affect the heart. About 1 in every 100 to 200 babies is born with a heart defect. Heart defects make up about one-third to one-fourth of all birth defects. Some of these heart defects can be serious, and a few are very severe.
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What causes birth defects?

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We do not know what causes most birth defects. Sometimes they just happen and are not caused by anything that the parents did or didn't do. Many parents feel guilty if they have a child with a birth defect even if they did everything they could to have a healthy child.
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When in pregnancy do birth defects happen?

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Birth defects happen before a baby is born. Inherited or genetic factors; things in the environment, such as smoking or drinking alcohol or not getting enough folic acid; and a woman s illness during pregnancy can cause birth defects. Most birth defects happen in the first 3 months of pregnancy, when the organs of the baby are forming. This is the most important stage of development. However, some birth defects happen later in pregnancy.
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What are neural tube defects (NTDs)?

Birth Defects Resources: Folic Acid & Spina Bifida Frequentl...
Between the 17th and 30th day after conception (or 4 to 6 weeks after the first day of a woman's last menstrual period), the neural tube forms in the embryo (developing baby) and then closes. The neural tube later becomes the baby's spinal cord, spine, brain, and skull. A neural tube defect (NTD) occurs when the neural tube fails to close properly, leaving the developing brain or spinal cord exposed to the amniotic fluid. The two most common neural tube defects are anencephaly and spina bifida.
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Did your child have any birth defects?

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Are The Chances Of Birth Defects Higher?

Frequently Asked Fertility Questions, Virginia IVF & Androlo...
There is no reported correlation between babies conceived with medical intervention and birth defects. The risk is no greater than in the normal population.
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What causes the pituitary to malfunction?

Pituitary Network Association - FAQ
Tumors (overwhelmingly benign), inflammation, infections and injury can cause the gland to malfunction, as well as metastasis or spread of other tumors to the pituitary (rare). Radiation therapy to the brain can also cause normal pituitary cells to malfunction.
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How are pituitary tumors treated?

Pituitary Network Association - FAQ
It depends on the type of tumor and how far it has invaded into the brain, as well as the patient's age and overall health. Three kinds of treatment are used: surgery (removing the tumor during an operation), radiation therapy (using high-dose x-rays/proton beams to kill tumor cells) and drug therapy to shrink and sometimes eradicate the tumor. Drugs can also block the pituitary gland from making too much hormone.
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What are the symptoms of pituitary tumors?

Frequently Asked Questions about Pituitary Cancer
Pituitary tumors that affect hormones may cause a variety of symptoms, which are related to high hormone levels and production. These symptoms will be different in children than in adults. Growth hormone-secreting adenomas in children may cause: Other more rare kinds of pituitary tumors cause other symptoms. It is important for anyone who is experiencing any unusual symptoms to see their doctor.
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What are the symptoms of a pituitary 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.
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Acromegaly FAQs Medical Reference Medical Encyclopedia Infor...
The pituitary is a tiny gland that resides deep within the skull under the main part of the brain. It produces several different hormones, including growth hormone.
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How can I produce an assembly?

Andy Mc's .NET Framework FAQ
The simplest way to produce an assembly is directly from a .NET compiler. For example, the following C# program: public class CTest { public CTest() { System.Console.WriteLine( "Hello from CTest" ); } } You can then view the contents of the assembly by running the "IL Disassembler" tool that comes with the .NET SDK. Alternatively you can compile your source into modules, and then combine the modules into an assembly using the assembly linker (al.exe).
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Why did you produce this?

What's Asthma All About - Frequently Asked Questions
The web is the most powerful tool to transmit information to people around the globe, but it is difficult to find high-caliber educational materials that effectively leverage the power of web-based technologies. We created "What's Asthma All About?" to illustrate this potential through example. We chose asthma because it remains a common, treatable disease that affects adults and children around the world.
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