Adenomatous Hyperplasia Arising from Dual Ectopic Thyroid

Kwon, Hee Jun; Jin, Sung Min; Lee, Sang Hyuk; Kim, Dong Hun

doi:10.3342/ceo.2009.2.3.155

Cited by 10 publications

(6 citation statements)

References 11 publications

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“…These are benign, well-circumscribed, encapsulated tumors arising from Schwann cells, a neuroectodermal element of the nerve sheath [6,7]. Cystic changes in vagal schwannoma are extremely rare [1].…”

Section: Discussionmentioning

confidence: 99%

“…Cervical vagal schwannoma is a very rare peripheral nerve tumor, about one third of which occur in the head and neck region [ 3 , 4 , 5 ]. These are benign, well-circumscribed, encapsulated tumors arising from Schwann cells, a neuroectodermal element of the nerve sheath [ 6 , 7 ]. Cystic changes in vagal schwannoma are extremely rare [ 1 ].…”

Section: Discussionmentioning

confidence: 99%

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A Cervical Vagal Schwannoma Mimicking a Parathyroid Cyst

Hwang

Kim

et al. 2014

Clin Exp Otorhinolaryngol

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Cervical vagal schwannomas with cystic degeneration changes are extremely rare. These tumors are typically benign and slow growing. A 44-year-old woman underwent complete resection of a tumor measuring 4×3.5 cm in the right neck using the endoscopic approach, instead of the conventional transcervical approach. We applied the new scarless neck surgery technique with an endoscopic unilateral axillo-breast approach. The tumor originated from the right vagus nerve, and was confirmed to be a vagal schwannoma pathologically. The patient has been followed up for 18 months postoperatively with no evidence of tumor recurrence or neurological deficit. We report an extremely rare vagal schwannoma with cystic degeneration that was removed by an endoscopic approach, along with a review of the relevant literature.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

A Cervical Vagal Schwannoma Mimicking a Parathyroid Cyst

Hwang

Kim

et al. 2014

Clin Exp Otorhinolaryngol

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“…ETT is a rare anomaly, yet it is further uncommon for dual ETT to be demonstrated simultaneously. In the English literature, we retrieved only 36 cases of dual ectopic thyroid so far [1] , [2] , [3] , [4] , [5] , [6] , [7] , [8] , [9] , [10] , [11] , [12] , [13] , [14] , [15] , [16] , [17] , [18] , [19] , [20] , [21] , [22] , [23] , [24] . In the present study, we retrospectively reviewed all thyroid scintigraphies and medical documents over a time period of 5 years at our institution.…”

Section: Introductionmentioning

confidence: 99%

Scintigraphic Detection of Dual Ectopic Thyroid Tissue: Experience of a Chinese Tertiary Hospital

et al. 2014

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PurposeTo assess scintigraphic pattern, clinical indication and relevance of dual ectopic thyroid tissue (ETT). Literature is reviewed for such cases.MethodsIn this 5-year retrospective study, we reviewed all thyroid scintigraphies in our data base. Patients diagnosed with suspected ETT were identified. Literature is reviewed. Statistics were done by one-way analysis of variance and least significant difference test.ResultsFrom 11905 thyroid scintigraphies during the 5-year period, we retrieved 121 patients eligible for analysis. The top two indications were assessing a palpable front neck mass to determine whether it was an ETT, and primary hypothyroidism. Patients were divided into 3 groups. Group 1 with single ETT (83 cases); group 2 with dual ETT (6 cases) and group 3 with athyroid (32 cases). Age and thyroid hormones were highest in group 2, and lowest in group 3. Thyrotropin was highest in group 3, and lowest in group 2. Thyroxine was given to hypothyroid patients, while no surgery was performed. There were 42 published cases with dual ETT, most of whom were under 30 years old. 38.10% of them were euthyroid, 33.33% hypothyroid, and 21.43% subclinical hypothyroid. Most frequent ectopic positions included lingual (33.73%), sublingual (27.71%) and subhyoid (22.89%).ConclusionsIn our cohort, incidence of dual ETT was 0.05% if the denominator was total number of thyroid scintigraphies. The incidence was 4.96% if the denominator was the number of patients with suspected ETT. Important clinical indication is a front neck palpable mass suggestive of an ETT. Important clinical relevance of recognizing the dual ETT pattern is to avoid inappropriate surgery. After reviewing all published cases, we find dual ETT is often seen in young patients. Most of such patients are euthyroid or mildly hypothyroid. Thyroid ectopia often resides in lingual, sublingual and subhyoid areas.

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“…9 About 30 cases of dual ectopic thyroid have been reported in literature so far with a female to male ratio of 1.5:1 and age range of 4-71 years. [10][11][12] Ashutosh Kansal et al in 2014 described a case of DET. 13 A recent case of DET was reported in 2018 by Shigenori N et al in a 15 year old girl.…”

Section: Discussionmentioning

confidence: 99%

Dual ectopic thyroid – A rare case report

Hawaldar¹,

Sodani²,

Sodani³

et al. 2020

ACHR

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Congenital anomalies are very uncommon in thyroid gland and dual ectopic thyroid (DET)is even more rare entity. Till date only about 30 cases of DET have been reported in the world literature, majority of them being in the anterior midline neck region . Case Report: Here we report a case of a seven year old male child with dual ectopic thyroid in lingual and subhyoid regions with mild hypothyroidism. The diagnosis of DET was based on CT scan findings and FNAC of the subhyoid swelling. The normal thyroid gland was not visualized in the neck on CT scan. The microscopyof the aspirate revealed abundant thick and thin colloid with normal thyroid follicular cells arranged in small sheets and clusters along with cyst macrophages confirming the swelling to be of thyroid origin. Conclusion: Ectopic thyroid tissue is a rare entity and dual ectopic thyroid with absence of thyroid gland in its normal location is extremely rare. Clinical, radiological and cytological analysis helps in arriving at a diagnosis

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Adenomatous Hyperplasia Arising from Dual Ectopic Thyroid

Cited by 10 publications

References 11 publications

A Cervical Vagal Schwannoma Mimicking a Parathyroid Cyst

A Cervical Vagal Schwannoma Mimicking a Parathyroid Cyst

Scintigraphic Detection of Dual Ectopic Thyroid Tissue: Experience of a Chinese Tertiary Hospital

Dual ectopic thyroid – A rare case report

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