Thyroglossal Duct Cyst

by Carlo Raj, MD

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    Hello and welcome to the congenital thyroid pathology that we need to refer to. Just enough information to make sure that you’re able to distinguish one condition from another. Think of this as being an enlargement that you’re going to find in the neck. Here, you have a picture of a child that has such an enlargement. Highly differential could be something like a thyroglossal duct cyst. However, as we continue our discussion, we will further look at other differentials that you want to keep in mind and either rule them in or rule them out. To begin, the thyroid-thyroid development, it is the back of the tongue known as a foramen cecum. It is then migrating down towards… Where you would expect your thyroid gland to be? The beautiful isthmus that you know as being the thyroid. However, anywhere along the migration from the foramen cecum and down to where the thyroid should be located and if there’s a remnant may then be referred to as being a thyroglossal duct cyst. As the fibrous tract, which is the obliterated thyroglossal duct and extends from the pyramidal lobe and that is an important anatomical landmark that you want to pay attention to superiorly to the hyoid bone and may harbour thyroglossal duct cyst anywhere between those regions. Now, when you have such a remnant remaining, is it possible that you may have altered thyroid function? No. You’d have normal thyroid functioning, just as you would with normal thyroid, depending as to exposure. Is it possible that you may then develop cancer in thyroid gland? Sure. Could then the thyroglossal duct cyst, which is a remnant of your thyroid, may give rise to an ectopic thyroid cancer? That is a possibility. Keep that in mind. Careful examination of the anterior cervical...

    About the Lecture

    The lecture Thyroglossal Duct Cyst by Carlo Raj, MD is from the course Thyroid Gland Disorders.

    Included Quiz Questions

    1. Ectopic thyroid tissue can be found anywhere along the path of the duct
    2. Made up of transitional epithelium
    3. Forms from the hyoid bone
    4. Begins as the foramen cecum
    5. Severely alters thyroid function
    1. Pyramidal lobe
    2. Foramen cecum
    3. Obliterated thyroglossal duct
    4. Hyoid bone
    5. Extraductal cyst
    1. Are more tethered to underlying structures
    2. Are associated with a sinus tract
    3. Are often accompanied by a fistula
    4. Are superficial
    5. Have ill-defined edges

    Author of lecture Thyroglossal Duct Cyst

     Carlo Raj, MD

    Carlo Raj, MD

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