Ectopic submandibular thyroid tissue. 1998

T Aköz, and B Erdogan, and M Ayhan, and F Cinar
Ankara Numune Hospital, Department of Otolaryngology, Turkey.

We reported a case of a 66 year-old male patient with a mass located in the right submandibular region. Surgical excision of the mass was performed and histologic examination revealed that the tumor was ectopic thyroid tissue. Additionally, imaging studies confirmed that the thyroid gland was found in its normal location and the patient had normal thyroid function testing. In reviewing the literature, we found submandibular thyroid tissue to be a rare entity with only 4 cases described. We discussed embryologic development of the normal thyroid gland and some explanations as to the origins of several forms of ectopic thyroid tissue, including that found in the submandibular region.

UI MeSH Term Description Entries
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D002828 Choristoma A mass of histologically normal tissue present in an abnormal location. Aberrant Tissue,Ectopic Tissue,Heterotopic Tissue,Aberrant Tissues,Choristomas,Ectopic Tissues,Heterotopic Tissues,Tissue, Aberrant,Tissue, Ectopic,Tissue, Heterotopic,Tissues, Aberrant,Tissues, Ectopic,Tissues, Heterotopic
D003937 Diagnosis, Differential Determination of which one of two or more diseases or conditions a patient is suffering from by systematically comparing and contrasting results of diagnostic measures. Diagnoses, Differential,Differential Diagnoses,Differential Diagnosis
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D013363 Submandibular Gland One of two salivary glands in the neck, located in the space bound by the two bellies of the digastric muscle and the angle of the mandible. It discharges through the submandibular duct. The secretory units are predominantly serous although a few mucous alveoli, some with serous demilunes, occur. (Stedman, 25th ed) Submaxillary Gland,Gland, Submandibular,Gland, Submaxillary,Glands, Submandibular,Glands, Submaxillary,Submandibular Glands,Submaxillary Glands
D013364 Submandibular Gland Diseases Diseases involving the SUBMANDIBULAR GLAND. Disease, Submandibular Gland,Diseases, Submandibular Gland,Gland Disease, Submandibular,Gland Diseases, Submandibular,Submandibular Gland Disease
D013961 Thyroid Gland A highly vascularized endocrine gland consisting of two lobes joined by a thin band of tissue with one lobe on each side of the TRACHEA. It secretes THYROID HORMONES from the follicular cells and CALCITONIN from the parafollicular cells thereby regulating METABOLISM and CALCIUM level in blood, respectively. Thyroid,Gland, Thyroid,Glands, Thyroid,Thyroid Glands,Thyroids

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