Imaging
Thyroglossal duct cyst
- Preliminary Diagnosis: Thyroglossal duct cyst
-
I. What imaging technique is first-line for this diagnosis
- II. Describe the advantages and disadvantages of this technique for diagnosis of thyroglossal duct cyst.
-
III. What are the contraindications for the first-line imaging technique?
-
IV. What alternative imaging techniques are available?
- V. Describe the advantages and disadvantages of the alternative techniques for diagnosis of thyroglossal duct cyst.
- VI. What are the contraindications for the alternative imaging techniques?
Preliminary Diagnosis: Thyroglossal duct cyst
I. What imaging technique is first-line for this diagnosis
CT soft tissue neck with IV contrast.
II. Describe the advantages and disadvantages of this technique for diagnosis of thyroglossal duct cyst.
Advantages
Relatively inexpensive, fast imaging modality.
Highly specific and sensitive for detecting and diagnosing a thyroglossal duct cyst.
Can track the entire course of the thyroglossal duct cyst.
Disadvantages
Exposes a patient to ionizing radiation.
III. What are the contraindications for the first-line imaging technique?
May be contraindicated in pregnant patients.
IV. What alternative imaging techniques are available?
MR of the neck with IV contrast
V. Describe the advantages and disadvantages of the alternative techniques for diagnosis of thyroglossal duct cyst.
MR of the neck with IV contrast
Advantages
May help fine tune a differential diagnosis.
Disadvantages
Expensive
Time-consuming
May be subject to dental hardware and motion artifact.
VI. What are the contraindications for the alternative imaging techniques?
MR of the neck with IV contrast
Contraindicated in patients with non-MR compatible hardware.
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