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Using the Pituitary Tuft to Make the Call

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Dr. Shupek,

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let's look at this 30-year-old infertility patient.

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And I'd ask you the question again,

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as I did in a prior vignette.

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Is this case tough or just simply tough?

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Yeah, well,

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we are all becoming together aficionados of the tuft.

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And I kind of picked out this case because it

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kind of shows the utility of that finding.

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Okay, so this is a patient, a young patient,

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hyperprolactinemia and infertility. Okay?

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So if you look in the Sagittal view, Dr.

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Pomerance went over the Sagittal how to use that,

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the post-contrast images is this tiny little

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dot there. Okay? So the question is,

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is there action there or we're kind

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of just imagining stuff? Well,

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this is a way that you can use the pituitary tuft,

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okay? Because here we are, here's the pituitary tuft,

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and here's this lesion,

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and there's a little bit of mass effect on the tuft.

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I would say it's a little bowed from right to left.

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So we're going to have to take this thing kind of

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seriously as being a possible

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lesion because it's exerting

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a mass effect. Now, the stalk is not deviated,

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but it's so small,

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it's in the inferior portion of the gland,

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but it's in the anterior portion.

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It's in front of the pars intermedia, probably.

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So it's in part of the gland where

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we might expect an adenoma.

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Okay,

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so this is one way that you can use the tuft.

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Now, another thing that is very important if you can get

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this information is what's the prolactin level?

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Okay,

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because prolactin levels can go up

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for a lot of different reasons.

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2025 phenothiazines

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verapamil, I think,

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will do a number of other medications,

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a number of other physiologic states.

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But when you get a prolactin 100 or above,

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your chances of it being an adenoma,

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Yeah, really high. And above 150, it's like 99.9%.

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You can get compression of the gland extrinsically

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that causes prolactin secretion,

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but almost never above 100 or 150.

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So if you got an infertility patient,

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your prolactin level is 130.

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You almost have to have a microadenoma.

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So that's going to push you towards being more

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aggressive with these tiny little dots.

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And as Dr. Shupeck said,

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this time we have a pituitary tuft and a tough little

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nasty microadenoma that is producing infertility.

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Let's move on, shall we?

Report

Description

Faculty

Stephen J Pomeranz, MD

Chief Medical Officer, ProScan Imaging. Founder, MRI Online

ProScan Imaging

Tags

Sella

Neuroradiology

Neoplastic

MRI

Head and Neck

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