this case study reports a rare variation of the superior laryngeal artery (sla), which is the principal arterial supply of the larynx. the knowledge of the arterial variations is essential for the surgeons to prevent blood loss and postoperative complications. during routine dissection of an adult male cadaver, a rare arterial variation in the sla was seen. in this case, the sla passed through ...

volving the jugular foramen is rare. It shows usually hypovascular lytic bony destruction of the jugular foramen (1). Hypervascular metastases such as those from renal and thyroid carcinoma may produce destructive vascular lesions similar to paragangliomas (2). The authors report a case of hypervascular metastasis from thyroid carcinoma in the jugular foramen simulating glomus jugulare tumor.

The name thyroid gland, in English, is derived from the Latin glandula thyreoidea, meaning shield-shaped gland, named by Thomas Warton in 1656 [1]. As the first endocrine gland to develop embryologically [2], it possesses important functions from fetal development until death. Embryologically, the development of the thyroid gland begins in the fourth week of development as a depression and epit...

Vocal fold paralysis is associated with involvement of the vagus nerve or the recurrent laryngeal nerve between the jugular foramen and the entry point into the larynx. Malignancies of the thyroid are a frequent cause, but vocal fold paralysis is also found in certain benign diseases. In a series of 1,200 cases, the incidence of the association between paralysis and benign thyroid disease was 0...

Thyroglossal duct cysts develop from remnants of the thyroid anlage that descend from the foramen cecum on the base of the tongue between the fourth and seventh weeks of development [1]. The thyroid primordium passes either anterior, posterior, or through the hyoid bone in its descent in the midline of the neck. This leaves a possibility that thyroid remnants may persist at any site along this ...

INTRODUCTION Ectopic thyroid tissue may appear in any location along the trajectory of the thyroglossal duct from the foramen cecum to the mediastinum. Rarely, there is incomplete descent of the gland where the final resting point may be high resulting in sublingual ectopic thyroid tissue. Ectopic thyroid tissue carries a low risk of malignancy. Most recently reported neoplasms in ectopic thyro...

This case study reports a rare variation of the superior laryngeal artery (SLA), which is the principal arterial supply of the larynx. The knowledge of the arterial variations is essential for the surgeons to prevent blood loss and postoperative complications. During routine dissection of an adult male cadaver, a rare arterial variation in the SLA was seen. In this case, the SLA passed through ...

PURPOSE  Although papillary thyroid carcinoma metastases to the parapharyngeal space are rare, the high amount of fat tissue allows tumors to grow clinically undetectable until they invade most of the parapharyngeal space. We describe for the first time a combined endonasal and transcervical approach for a parapharyngeal metastasis from a papillary thyroid carcinoma. MATERIALS AND METHODS  A ...

Lingual thyroid is a rare embryological anomaly and originates from failure of the thyroid gland to descend from the foramen caecum to its normal eutopic pre-laryngeal site. The ectopic gland located at the base of the tongue is often asymptomatic but may cause local symptoms such as dysphagia, dysphonia with stomatolalia, upper airway obstruction and haemorrhage, often with hypothyroidism. Two...

Ectopic thyroid is a rare embryogenic anomaly that occurs during its migration from foramen caecum to its pretracheal position. An intracardiac ectopic location is even rarer and found most commonly in the right ventricular outflow tract in sporadic reports. While surgery in symptomatic patients seems appropriate, resection of non-neoplastic ectopic tissue remains a clinical equipoise. Its occu...