alb10657099
Lingual Thyroid, CT Scan
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Title:
Lingual Thyroid, CT Scan
Caption:
This colour-enhanced, axial (cross-sectional) CT image through the oral cavity demonstrates a large, abnormal density (green) in the tongue. This represents lingual thyroid tissue. This patient had no thyroid tissue in the expected region of the lower neck. The thyroid gland develops near the foramen cecum of the tongue and normally descends along a tract called the thyroglossal duct to the lower neck. Rarely, this normal descent does not occur and thyroid tissue remains in the tongue, but remnants of thyroid tissue and the duct itself may occur anywhere along the tract. Often, however, no thyroid tissue is present in the lower neck, only in the tongue base, as in this case.
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Credit:
Album / Science Source / Living Art Enterprises
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Image size:
4200 x 4755 px | 57.1 MB
Print size:
35.6 x 40.3 cm | 14.0 x 15.8 in (300 dpi)
