Intra thyroid thyroglossal cyst: a rare presentation

Lakshmi, Vijaya; Surendran, Divya; Moothiringode, Savithri

doi:10.18203/2320-6012.ijrms20193417

Cited by 2 publications

(2 citation statements)

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“…Literature searches identified a very limited number of ITTDC cases documented in English medical literature [2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17]. Among them, those being reported as an incidental finding for other issues, like the present case, were extremely rare [3,13].…”

Section: Introductionmentioning

confidence: 99%

“…observed 11/685 cases (1.6%) of TDC located within the thyroid gland. Further literature searches in PubMed and Google search identified 21 available cases of ITTDC reported in detail in English medical literature[2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17] (Table1). The clinical features, FNAB cytology, histology, differential diagnosis, treatment, and follow-up of ITTDC were reviewed, summarized, and discussed based on these published cases.…”

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confidence: 99%

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Intra-Thyroid Thyroglossal Duct Cyst Incidentally Identified in an Adult With Primary Hyperparathyroidism: A Rare Case Report and Literature Review

Chandraratnam¹,

Luo²,

Wong³

2021

Cureus

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Thyroglossal duct cyst (TDC) commonly occurs in the neck just below the hyoid bone. Uncommon sites of TDC have been documented, and of these, an intra-thyroid location is very rare. We report such a rare intrathyroid TDC (ITTDC) initially identified by ultrasound examination as an incidental thyroid imaging reporting and data system (TI-RADS) three lesion in the left thyroid lobe of a 59-year-old male patient with primary hyperparathyroidism due to a parathyroid adenoma. The preoperative ultrasound-guided fineneedle aspiration biopsy (US-FNAB) cytology of the thyroid lesion was interpreted as Bethesda III (atypia of undetermined significance or follicular lesion of undetermined significance). A left hemithyroidectomy and left superior parathyroidectomy were performed. The postoperative histology revealed the thyroid lesion to be an ITTDC. An incidental papillary thyroid microcarcinoma was also histologically revealed. The 2.5-year postoperative follow-up was uneventful. Based on literature searches, the clinical features, fine-needle aspiration biopsy (FNAB) cytology, histology, differential diagnosis, treatment, and follow-up of ITTDC were reviewed and discussed. A proposal to categorize ITTDC into two anatomical location subtypes is made. The liability of ITTDC to be misinterpreted on FNAB cytology due to rarity and lack of morphological specificity is emphasized.

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