Interactive Transcript
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So we are continuing our anatomic review
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of the submandibular gland.
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And now we're going to talk about the duct of the
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submandibular gland, which I refer to as the Wharton's duct.
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Wharton's duct runs about 5 cm,
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and it runs between the mylohyoid muscle and the
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hyoglossus muscle, which was demonstrated
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on the previous case.
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This is effectively the sublingual space.
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And this duct is also in close association with two of the
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nerves that innervate the tongue,
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those being the lingual nerve and the
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hypoglossal nerve. And as I mentioned,
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it opens lateral to the frenulum.
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The frenulum is that midline,
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very fine tissue that you see when
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you lift up your tongue.
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You have separation of the two sides of
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the floor of the mouth by the frenulum.
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And on either side of the frenulum,
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you will find the ductal orifice of
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Wharton's duct, the submandibular duct.
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Again, for those people who have done
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any amount of sialography,
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you know that it's got a little nipple to it
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that is quite difficult to catheterize.
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Here, again, is an example of a patient
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who has a calculus in the duct.
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This is the calcification,
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and you see the ductal dilatation.
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Ductal dilatation,
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we will use the term sialoectasia.
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That refers to the duct enlargement or sialodochoectasia.
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So, the docho is the duct portion.
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Ectasia is the enlargement and salivary gland.
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So, you will hear these
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these terms used for the duct proximal
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to the calcification.
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