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Doctor insights on: Mr Pituitary Without Contrast

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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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Can a CT and MRI without contrast detect a pituitary tumour?

Can a CT and MRI without contrast  detect a pituitary tumour?

Yes it could: Ct is more dependent on contrast. But MRI has two phases(t1and t2) which can serve like a contrast and the tumors often show up better in t2 weighted images. ...Read more

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Is it normal to have white under & behind a pituitary gland on MRI no contrast?

Is it normal to have white under & behind a pituitary gland on MRI no contrast?

Probably: I assume you are referring to the area surrounding the pituitary. This is the sella turcica, the portion of bone which protects it. At the posterior (back) of the pituitary, there is also a "bright spot" which is part of normal pituitary tissue. There are two completely different tissue types that make up the pituitary and they look different on mri. ...Read more

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What can cause the pituitary gland to show up bright white on MRI with out contrast?

What can cause the pituitary gland to show up bright white on MRI with out contrast?

Posterior Pituitary: The posterior pituitary has intrinsic high t1 signal. It's thought to reflect the high concentration of neurosecretory granules in the neurohypophysis (posterior pituitary which stores/releases oxytocin ; vasopressin produced in hypothalamus). Absence of the normal posterior pituitary bright spot should prompt a search for an ectopic posterior pituitary that has failed to migrate from hypothalamus. ...Read more

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Could a MRI with contrast fail to identify a pituitary tumor?

Could a MRI with contrast fail to identify a pituitary tumor?

Yes: Most pituitary tumors are "microadenomas", meaning that they are less than 1 CM in size. Mris done specifically to look for a pituitary tumor are very good at detecting tumors near 1 CM in size, and identify about 50% of tumors in the 0.3 CM size range, and would miss most tumors smaller than this. ...Read more

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What does a MRI of the pituitary gland check for? What kinds of abnormalities does it detect? Mri is without and then with contrast

What does a MRI of the pituitary gland check for? What kinds of abnormalities does it detect? Mri is without and then with contrast

Pituitary anatomy: Greetings, a pituitary MRI +\- contrast is done to evaluate the potential causes of pituitary hormone abnormalities. Typically, this would be looking for a pituitary adenoma, a benign tumor that can make excess hormones (eg-Prolactin) or damage the pituitary resulting in low hormone levels. Inflammation or a condition called an "empty sella" can also be seen and result in hormone problems. ...Read more

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If I had a pituitary adonema would a standard brain MRI with and without contrast show it?

If I had a pituitary adonema would a standard brain MRI with and without contrast show it?

Maybe: Pituitary adenomas MRIs are very specific protocols. If you have a 'macroadenoma' which is larger than the normal gland, a routine MRI protocol would still likely show this. However, 'micoadenomas' can be only a few millimeters in size and a routine brain protocol MRI could miss it bases on scan slice thickness or it may not stand out within the normal tissue. ...Read more

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Does a head MRI both with and without contrast show if there is a problem or tumor in the pituitary gland?

Pituitary gland: Hi, yes, MRI is a very good imagining modality to evaluate posterior brain, but But MRI might not detect microadenomas that are smaller than 3 mm (about 1/8 inch) across, follow up imaging if there is any doubt could be helpful. ...Read more

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Finding: a 1 mm focus of non-contrast or delayed contast enhancement involving the pituitary gland at the junction of the anterior and posterior lobes

Finding: a 1 mm focus of non-contrast or delayed contast enhancement involving the pituitary gland at the junction of the anterior and posterior lobes

Follow it: 1 mm sounds very small and non threatening. Recommend repeat study in 3 months and then annually if not enlarging. Doubtful that something that size is causing headaches, visual or endocrine problems. ...Read more

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Had brain MRI no contrast. The tech said she was concerned i had a abnormality on my pituitary gland cause it should up bright white. What does mean?

Had brain MRI no contrast. The tech said she was concerned i had a abnormality on my pituitary gland cause it should up bright white. What does mean?

Pituitary: Follow up with your doctor. Most abnormalities of the pituitary can be treated but don't take what the tech is saying as having meaning beyond the fact that you should follow up with the doctor who ordered it. ...Read more

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Had MRI today to look at pituitary gland he gave me a contrast material injection which is the dye andnow were injected my arm has gone green nd hurts?

Had MRI today to look at pituitary gland he gave me a contrast material injection which is the dye andnow were injected my arm has gone green nd hurts?

Could be: Hi. It could be a hematoma or bruise. Maybe the IV needle damaged the vein and fluid went into the surrounding soft tissue. You might want to go where they did the MRI and show them. What is your pituitary problem they're doing the scan for? ...Read more

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I'm 68 year old female. Weight 145,Height 5'7". IGF-1 level 196. Had brain MRI w/contrast. Pituitary normal, no tumor. Is this level too high for me?

I'm 68 year old female. Weight 145,Height 5'7". IGF-1 level 196. Had brain MRI w/contrast. Pituitary normal, no tumor. Is this level too high for me?

IGF: Values of IGF-1 for your age are low 65 ng/ml, median 110 and high 95th percentile is 188. Your level is not that above upper limit of normal. Actually I have a strong interest in Age Management Medicine and would consider this good. However, I do not know if you are symptomatic or not. Hope the data helps! ...Read more

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Can a pituitary tumor disappear on its own without any treatment? I underwent 2 mris with a contrast . The first showed 5 mm pituitary microadenoma. The second, which was done 3 years later showed no tumor at all. Could it be that a radiologist misread th

Can a pituitary tumor disappear on its own without any treatment? I underwent 2 mris with a contrast . The first showed 5 mm pituitary microadenoma. The second, which was done 3 years later showed no tumor at all. Could it be that a radiologist misread th

MRI : Mri machines can vary greatly in quality and in their ability to distinguish a very small lesion in the pituitary gland. Most microadenomas show up as small areas of decreased enhancement compared to the rest of the gland. These small areas can also be artifact, cyst, scar etc. It is possible but unlikely that the radiologist misread the scan. Finally, most microadenomas are biologically active and produce a hormone. Without an endocrine abnormality, the lesion is less likely to be a microadenoma. When there is doubt clinically, a follow up scan in a few months is advised. ...Read more

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Have pituitary tumor ever been seen on non-contrast CT or MRI scans?

Have pituitary tumor ever been seen on non-contrast CT or MRI scans?

Yes: The addition of contrast increases the ability to see these tumors. Mri with contrast is the best imaging test we have to see the pituitary gland. ...Read more

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What is the pituitary?

Master gland: The pituitary is a gland that is about a centimeter in diameter that sits at the base of the brain in the anterior (front) cranial fossa. It is in the midline and surrounded on both sides by the carotid arteries. It is at the apex of the nasa passages. The pituitary gland is responsible for hormones that control growth, lactation, urine concentration, thyroid hormone release, sex hormone release. ...Read more

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What does a small pituitary mean?

Usually nothing: So long as pituitary function is normal, a small pituitary is of no clinical significance. ...Read more

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What causes the pituitary to malfunction?

Several things: Pituitary growth called adenomas or sheehans syndrome which occurs after a life threatening complication in childbirth. ...Read more

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Can people with pituitary gigantism work?

Can people with pituitary gigantism work?

Pituitary: The simple answer is yes but you must stay in constant touch with an Endocrinologist, a Neurologist, and a Neurology surgeon - in that order. Wish you well and please keep me posted. ...Read more