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Doctor insights on: Pituitary Apoplexy Emedicine

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What causes pituitary tumors?

What causes pituitary tumors?

Unknown.: There are malignant and non-malignant pituitary tumors, some that produce hormones, some that don't. Some cause problems because of their size and relationship to the optic chiasm and can cause visual problems and headaches. Causes of pituitary tumors are unknown. ...Read more

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What is called pituitary apoplexy?

What is called pituitary apoplexy?

Critical problem: When there is a tumor, usually adenoma, growing within the pituitary gland, at the base of the brain, hemorrhage or infarct of the tumor can result in catastrophic headache, visual loss, confusion, disorientation, coma, and likely death. This event is often terminal. ...Read more

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What are gonadotropin secreting pituitary tumors?

Pituitary tumors: These are very rare, and secrete high levels of fsh or lh. These hormones stimulate the gonad, so will cause elevated estrogen in a woman, and elevated testosterone in a man. ...Read more

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Who does pineal tumor brain surgery?

Who does pineal tumor brain surgery?

Neurosurgeon: Most neurosurgeons can do this surgery. Depending on the size of the pineal tumor, you may want to call around to different universities or large medical centers and ask if there is a neurosurgeon who does endoscopic surgery and may do your tumor. But any neurosurgeon can give you the proper consultation. ...Read more

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Are a pituitary and adrenal tumor related?

Are a pituitary and adrenal tumor related?

Sometimes: Cushing disease occurs when the pituitary gland produces a substance that causes both adrenal glands to secrete too much cortisol. This excess cortisol leads to a series of problems that may include diabetes, hypertension, obesity, fatigue, porr wound healing, and others. Treatment is usually directed at the pituitary tumor. ...Read more

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Can a pituitary macro adenoma become micro adenoma?

Can a pituitary macro adenoma become micro adenoma?

It depends: It is in the eyes of the beholder..... Eyes of the reader of the pet or MRI of the brain ...Changing the machine... Treatment... Certain endogenous hormone levels and changes need to be considered. If the lesion is borderline to start with... Readings could change... Consult with the doctor and the radiologist... Compare side by side the pictures and correlate clinically. ...Read more

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Is a pituitary tumor a brain tumor?

Is a pituitary tumor a brain tumor?

Not quite: A pituitary tumor arises from the pituitary gland which is underneath the brain. These may be quite large and cause compression of the brain or the cranial nerves. This would be considered a "brain tumor" in general language. Pituitary tumors should be classified in a category of their own from a technical standpoint. ...Read more

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Why is pituitary adenoma infratentorial in adult tumors but craniopharyngioma is supratentorial in childhood?

Why is pituitary adenoma infratentorial in adult tumors but craniopharyngioma is supratentorial in childhood?

Sella Turcica: The tentorium cerebelli separates the cerebellum from the cerebrum. Supratentorial means ABOVE the tentorium and Infratentorial means BELOW. The pituitary gland sits in a special area called the hypophyseal fossa or sella turcia which is technically neither. Craniopharyngioma and pituitary adenoma grow SUPRATENTORIALLY in almost all cases, but rarely invade the clivus into the posterior fossa. ...Read more

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Can MRI without contrast see pituitary tumour from cushings?

Can MRI without contrast see pituitary tumour from cushings?

Yes it might: If it shows, then it has been useful. But one can not exclude its presence if no contrast was used.. So if there is strong suspicion, then a repeat MRI with contrast may be more certain and more definitive study to rely on. ...Read more

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Which is better: transsphenoidal surgery or craniotomy for pituitary macroadenoma?

Which is better: transsphenoidal surgery or craniotomy for pituitary macroadenoma?

Depends: Transsphenoidal approach has been standard for years as it avoids brain retraction and optic nerve manipulation. In larger tumors with more of a suprasellar location (think in the brain), a craniotomy is occasionally required to reach the whole tumor. ...Read more

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What releases anterior pituitary gonadotropins?

What releases anterior pituitary gonadotropins?

Gonadotropes: Fsh and lh are pituitary gonadotropins, they are released in response to pulsatile signals of gnrh from the hypothalamus. The cells that store and release them are sometimes called gonadotropes. ...Read more

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Is adrenal insufficiency after pituitary tumor removal permanent? How long before most usually gain pituitary function for acth back?

Is adrenal insufficiency after pituitary tumor removal permanent?  How long before most usually gain pituitary function for acth back?

Sometimes: It is really quite variable when the pituitary function restarts after the operation. It often depends on how much was removed. Unfortunately, sometimes it is permanent. Check with your neurosurgeon for more details. ...Read more

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Besides head injury, pregancy, surgery,or pituitary tumor, what can cause one to have transient central diabetes insipidus? autoimmune?

Besides head injury, pregancy, surgery,or pituitary tumor, what can cause one to have transient central diabetes insipidus? autoimmune?

Hard to say: Hi. I'd like to see the evidence for transient DI. Most autoimmune DI (for which there is no clinical lab test...yet) is not transient as far as we know, although that would be high on the list of suspects for a transient DI, in my opinion, having excluded the other causes you mention. Consider yourself fortunate if it's transient! Happy 2015! ...Read more

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Transsphenoidal surgery or craniotomy for pituitary adenoma?

First Option: Transsphenoidal approach has become the surgery of choice for pituitary adenomas. ...Read more

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Can a pituitary tumor cause thyroiditis?

Can a pituitary tumor cause thyroiditis?

No: Hi. No, a pituitary tumor can't cause thyroiditis. Pituitary tumors can cause hypothyroidism & hyperthyroidism (by different mechanisms), but can't cause thyroiditis. If both are coexistent, they're independent. All the best! ...Read more

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What is a pituitary tumor?

What is a pituitary tumor?

A growth: A pituitary tumor is simply a growth on the pituitary. It's not cancerous but it could cause problems by increasing or decreasing pituitary hormone secretion. It can also cause visual problems if it's big enough. ...Read more

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