Papillary Microcarcinoma of Sublingual Thyroid Gland: A Case Report

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Abstract

Ectopic thyroid gland is a rare condition where the thyroid is not placed in the pre-tracheal region. Majority of cases are commonly located at the lingual portion. The malignant shift of ectopic thyroid is considered a rare manifestation with a challenging surgical approach. Here we report our management and surgical approach of a patient with papillary microcarcinoma of sublingual thyroid gland presented to our facility.

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Ectopic thyroid tissue: anatomical, clinical, and surgical implications of a rare entity.

Konstantinos Natsis, D Lappas, Panagiotis Anagnostis … (2011)

Ectopic thyroid tissue is a rare entity resulting from developmental defects at early stages of thyroid gland embryogenesis, during its passage from the floor of the primitive foregut to its final pre-tracheal position. It is frequently found around the course of the thyroglossal duct or laterally in the neck, as well as in distant places such as the mediastinum and the subdiaphragmatic organs. Although most cases are asymptomatic, symptoms related to tumor size and its relationship with surrounding tissues may also appear. Any disease affecting the thyroid gland may also involve the ectopic thyroid, including malignancy. The clinician must distinguish between ectopic thyroid and metastatic deposits emerging from an orthotopic gland, as well as other benign or malignant masses. Thyroid scintigraphy plays the most important role in diagnosing ectopy, but ultrasonography contributes as well. In cases of symptomatic disease, surgery is the treatment of choice, followed by radioiodine ablation and levothyroxine suppression therapy in more refractory cases. This review provides current understanding about the wide clinical spectrum of this rare condition, also referring to optimal diagnostic approach, differential diagnosis, and management strategies.

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Ectopic thyroid cancer.

C Ravichand, Madhulika Agarwal, Piyush Mistry … (2007)

Ectopic thyroid tissue may be encountered anywhere from the foramen caecum to the lower neck. It is rarely seen in the mediastinum. True malignant transformation in ectopic thyroid tissue is extremely rare. Such a malignancy is virtually always diagnosed after surgical excision of the lesion at pathological examination. We report on an extremely rare case of true mediastinal thyroid cancer in a 45-year-old woman. The clinicopathologic features and diagnosis of the lesion, with regard to its mediastinal location are discussed.

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Lingual thyroid causing dysphagia and dyspnoea. Case reports and review of the literature.

Erik Toso, F. PIA, G Averono … (2009)

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 cases are presented, one in a 62-year-old female and the other in a 42-year-old female, both of whom complained of sensation of a foreign body and progressive dysphagia and dyspnoea caused by ectopic lingual thyroid. Treatment was performed with a partial endoscopic removal and an external cervical approach, followed by substitutive hormone treatment, respectively. Diagnostic procedures and therapeutic options are discussed and a review has been made of reports of lingual thyroid appearing in the literature.

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Author and article information

Journal

Journal ID (nlm-ta): Cureus

Journal ID (iso-abbrev): Cureus

Journal ID (issn): 2168-8184

Title: Cureus

Publisher: Cureus (Palo Alto (CA) )

ISSN (Electronic): 2168-8184

Publication date (Electronic, pub): 29 January 2020

Publication date (Electronic, collection): January 2020

Volume: 12

Issue: 1

Electronic Location Identifier: e6810

Affiliations

[1 ] Otolaryngology - Head and Neck Surgery, King Abdulaziz University, Jeddah, SAU

[2 ] Otolaryngology - Head and Neck Surgery, University of Jeddah, Jeddah, SAU

[3 ] Medicine, King Abdulaziz University, Jeddah, SAU

[4 ] Medicine, King Abdulaziz University Hospital, Jeddah, SAU

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Hani Z. Marzouki hanimarzouki@ 123456gmail.com

Article

DOI: 10.7759/cureus.6810

PMC ID: 7047928

SO-VID: 042f438a-e3ff-4c9c-8f95-61ff0a3e9578

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This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Papillary Microcarcinoma of Sublingual Thyroid Gland: A Case Report

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Bioscientifica Open Endocrinology

Most cited references 20

Ectopic thyroid tissue: anatomical, clinical, and surgical implications of a rare entity.

Ectopic thyroid cancer.

Lingual thyroid causing dysphagia and dyspnoea. Case reports and review of the literature.

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