Retropharyngeal parathyroid adenoma: precise preoperative localization with CT and arterial infusion of contrast material.

Miller, Donald L.; Craig, William D.; Haines, Gregory A.

doi:10.2214/ajr.169.3.9275880

Cited by 12 publications

(9 citation statements)

References 4 publications

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“…These ectopic parathyroid glands occur in disparate locations, including the oropharynx, the right posterior pharyngeal wall in the piriform sinus, and the right parapharyngeal space adjacent to the right pterygoid space. The authors postulated that if the superior parathyroid primordium fails to separate from the pharyngeal wall, this tissue might migrate retropharyngeally to a location within the piriform sinus primordium (19). Undescended parathyroid adenoma occurs as a result of suspended embryologic descent of the associated branchial pouch.…”

Section: Discussionmentioning

confidence: 99%

Parathyroid Adenoma of the Piriform Sinus: Case Series, Embryologic Basis, and Review of the Literature

Helman

Moubayed

et al. 2017

AACE Clinical Case Reports

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Objective: Parathyroidectomy is a procedure best performed by experienced parathyroid surgeons. Ectopic parathyroid adenoma is a well-described entity that can lead to a failed parathyroidectomy. Parathyroid adenoma of the piriform sinus is especially rare.Methods: Herein, we present a case series of 2 patients with ectopic parathyroid adenoma of the piriform sinus who underwent transoral resection of the lesion.Results: Both patients were successfully treated in our case series, and enjoyed an appropriate return to normal calcium and parathyroid levels. We further highlight the embryologic basis for this entity and present the available literature regarding surgical extirpation of parathyroid adenoma of the piriform sinus.Conclusion: Herein, we describe a transoral approach to piriform sinus adenomas in 2 patients. Both procedures were successful and without sequelae. We further provide a brief discussion of the management of other known cases of piriform sinus adenoma as well as their embryologic underpinnings. (AACE Clinical Case Rep. 2017;3:e379-e383) Abbreviations: CT = computed tomography; PHPT = primary hyperparathyroidism; PTH = parathyroid hormone; SPECT = single-photon emission computed tomography

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Section: Discussionmentioning

confidence: 99%

Parathyroid Adenoma of the Piriform Sinus: Case Series, Embryologic Basis, and Review of the Literature

Helman

Moubayed

et al. 2017

AACE Clinical Case Reports

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“…As far as we know, there are no imaging reports that compare a nonfunctional parathyroid adenoma with a functional parathyroid adenoma. It was reported that early contrast enhancement and delayed washout on a CT scan are indicative of parathyroid adenoma (7,8). Secondary parathyromatosis due to a primary parathyroid adenoma is also thought to have similar contrast media dynamics.…”

Section: Index Termsmentioning

confidence: 99%

Nonfunctioning Parathyromatosis after Endoscopic Thyroid Lobectomy via an Axillo-Breast Approach: A Case Report

Park

Jeong

2015

J Korean Soc Radiol

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Parathyromatosis is a rare disease that occurs in the neck and mediastinum as multiple lesions leading to hyperparathyroidism (1, 2). Parathyromatosis is usually divided into 2 types: primary parathyromatosis, which is proliferation of an embryonic remnant, and the more common secondary parathyromatosis, which is a post-surgical growth of retained parathyroid tissues or seeding of parathyroid tissue by capsular rupture of parathyroid adenoma during parathyroidectomy (1, 2). Early diagnosis and treatment of parathyromatosis is important because parathyromatosis also causes recurrent metabolic disorder after a parathyroidectomy for hyperparathyroidism (1-3). We experienced a patient with parathyromatosis without hyperparathyroidism. In this study, we report a case of secondary parathyromatosis after endoscopic thyroidectomy for a presumed thyroid mass via an axillo-breast approach. CASE REPORTA 16-year-old girl visited our institution for treatment of palpable masses in the anterior neck and upper chest wall. She had previously received an endoscopic right thyroid lobectomy via an axillo-breast approach for a painless palpable mass on the right side of the neck at an outside institution 6 months ago. A contrast-enhanced dynamic neck computed tomography (CT) with 2 phase (arterial phase 30 second, delayed phase 150 second) scan performed during the initial visit showed enhanced right thyroid tumor with early enhancement and delayed washout (Fig. 1). Ultrasonography-guided fine needle aspiration (FNA) was performed immediately and the pathologic report of FNA was follicular proliferation. The surgery was performed on the presumptive diagnosis of a tumor originating from the thyroid. Pathologic examination from the surgical exploration revealed a parathyroid adenoma. One month post-operation, pal-

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“…Ectopic parathyroid adenoma, or hyperplasia, may occur at the level of the pyriform sinus. 29 Other lesions that may affect the RPS and PVS include nerve sheath tumors (Fig. 12), vascular malformations, lymphatic malformations, hemangioma, and leiomyoma.…”

Section: Other Lesionsmentioning

confidence: 99%

Retropharyngeal and Prevertebral Spaces

Debnam

Guha-Thakurta

2012

Otolaryngologic Clinics of North America

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Retropharyngeal parathyroid adenoma: precise preoperative localization with CT and arterial infusion of contrast material.

Cited by 12 publications

References 4 publications

Parathyroid Adenoma of the Piriform Sinus: Case Series, Embryologic Basis, and Review of the Literature

Parathyroid Adenoma of the Piriform Sinus: Case Series, Embryologic Basis, and Review of the Literature

Nonfunctioning Parathyromatosis after Endoscopic Thyroid Lobectomy via an Axillo-Breast Approach: A Case Report

Retropharyngeal and Prevertebral Spaces

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