Mandibular lateral ectopia: A rare case presentation

Abstract

Ectopic thyroid is a rare congenital anomaly that results from failure of decent from the foramen cecum to the primitive thyroid during the stage of embryogenesis. The specific prevalence ranges from 1 in 100,000-300,000 population. Development, genetics, and mutation play a role in the formation of ectopic thyroid. The most common location of ectopic thyroid is at the base of the tongue, followed by sub-mandibular, pre-tracheal, esophageal, mediastinum, diaphragm, and other rare sites. Lateral ectopic thyroid is further a rare clinical entity which is formed due the failure of descend of the lateral thyroid component to the midline with a euthyroid in its normal anatomical position. Here, we present a case report of lateral ectopic thyroid which ordinarily does not flash as a diagnosis title for a painless, firm mass on the lateral aspect of the mandible, making the treatment plan inconclusive. Clinical, radiographic, laboratory tests with a histopathalogical examination make a categorical and final treatment for the ectopic thyroid. Regular follow-up with a euthyroid state maintenance gives a cherishing and positive output for the patient.

Keywords: Ectopic thyroid; embryogenesis; eu thyroid.

Figure 1

Clinical picture of the patient

Figure 2

CT coronal view of the lesion

Figure 3

3D CT view of the lesion

Figure 4

Surgical exposure of the lesion

Figure 5

Surgical site after complete removal of the lesion

Figure 6

Histopathalogical picture of the specimen