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The Parathyroid Glands

The Parathyroid Glands

The two pairs of parathyroid glands embedded within the posterior surface of the thyroid gland are restricted by a dense capsule around them. These glands comprise two distinct cell populations—parathyroid oxyphil and parathyroid principal cells- pivotal in calcium homeostasis.
Oxyphil cells, whose functions remain elusive, emerge during late puberty, adding a layer of complexity to the parathyroid gland's intricacies. In contrast, principal parathyroid cells undertake a vital role by...

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Related Experiment Video

Updated: May 5, 2026

Establishment of a Simple and Effective Rat Model for Intraoperative Parathyroid Gland Imaging

Establishment of a Simple and Effective Rat Model for Intraoperative Parathyroid Gland Imaging

Published on: August 17, 2022

EVALUATION AND MANAGEMENT OF PARATHYROID INCIDENTALOMAS DETECTED BY ROUTINE NECK ULTRASONOGRAPHY WITH A

S Ince¹, M Buldanli², A Cinar¹

¹University of Health Sciences, Gulhane Training and Research Hospital, Nuclear Medicine Department.

Acta Endocrinologica (Bucharest, Romania : 2005)

|January 23, 2025

Summary

Ultrasonography (US) can detect parathyroid incidentalomas (PTIs), but they are often mistaken for lymph nodes. Further lab tests and imaging are crucial for accurate PTI diagnosis and management.

Keywords:

Parathyroid adenoma Parathyroid incidentaloma Parathyroid scintigraphy Parathyroidectomy Ultrasonography

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Area of Science:

Endocrinology
Radiology
Pathology

Background:

Parathyroid incidentalomas (PTIs) detected via ultrasonography (US) are often misdiagnosed as perithyroidal lymph nodes due to reliance on clinical experience.
Accurate differentiation of PTIs is essential for appropriate patient management.

Purpose of the Study:

To evaluate the diagnostic role of US in detecting PTIs.
To define the clinicopathologic features of PTIs identified during routine neck US examinations.

Main Methods:

Retrospective analysis of 41,275 neck US reports.
Comparison of patients with pathology-confirmed PTIs (Group PCD) versus those without (Group NPCD).
Statistical analysis of demographic data, laboratory results (PTH, calcium, anti-TPO, anti-TG), and imaging findings.

Main Results:

Parathyroid incidentalomas (PTIs) were suspected in 66 patients (0.16%).
Pathological confirmation of PTI was obtained in 31 operated patients.
Significantly higher PTH and calcium levels were observed in Group PCD, while higher anti-TPO and anti-TG levels were noted in Group NPCD.

Conclusions:

Ultrasonography (US) findings suggestive of parathyroid incidentalomas (PTIs) warrant further investigation with laboratory tests and advanced imaging.
Establishing a multidisciplinary approach involving nuclear medicine, general surgery, and pathology is vital for accurate diagnosis and management of PTIs.