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Clinical Problem Solving: Radiology
April 18, 2011

Radiology Quiz Case 1: Diagnosis

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Arch Otolaryngol Head Neck Surg. 2011;137(4):407. doi:10.1001/archoto.2011.40-b

Diagnosis: Ectopic minor salivary gland with mucocele formation

On the basis of clinical history, physical examination, and CT scan findings, we suspected thyroglossal duct cyst. Thyroglossal duct cysts are lined by stratified squamous or columnar epithelium and contain thyroid tissue and respiratory epithelium in variable proportions. Approximately 24% of the reported thyroglossal duct cysts were located in the suprahyoid region.1In our case, histologic examination revealed multiple salivary ducts and glands embedded in the skeletal muscle. The glands contained both mucous (Figure 3, arrow) and serous (Figure 3, arrowhead) cells. Accumulations of mucinous secretion were observed in the dilated ductal lumen (Figure 4). The cyst had a fibrous wall lined by epithelial cells. Ectopic minor salivary gland with mucocele formation was diagnosed.

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