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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.
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Related Experiment Video

Updated: Apr 30, 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

Primary hyperparathyroidism with rare presentation as multiple brown tumours.

Smit Doshi¹, Arti Vadi¹, Amit Mahajan²

¹Department of ENT and.

Clinics and Practice

|April 26, 2014

Summary

This summary is machine-generated.

Primary hyperparathyroidism can rarely manifest as multiple brown tumors, mimicking bone cancer. This case highlights the importance of considering rare presentations for accurate diagnosis and treatment.

Keywords:

brown tumour hyperparathyroidism osteitis fibrosa cystica parathyroidectomy.

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

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Generation of Hypoparathyroid Rats via Carbon-Nanoparticle-Assisted Parathyroidectomy

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Area of Science:

Endocrinology
Oncology
Skeletal Diseases

Background:

Primary hyperparathyroidism (PHPT) is a metabolic disorder caused by excessive parathyroid hormone secretion.
Brown tumors are benign, localized bone lesions resulting from osteoclastic resorption due to prolonged hyperparathyroidism.
The differential diagnosis of bone lesions is broad, including primary bone neoplasms.

Observation:

A patient presented with multiple bone lesions clinically suggestive of primary bone neoplasms.
Radiological and biochemical investigations revealed these lesions to be brown tumors secondary to primary hyperparathyroidism.
The presentation of multiple brown tumors is an uncommon manifestation of PHPT.

Findings:

Histopathological examination confirmed the diagnosis of brown tumors.
Biochemical analysis showed elevated parathyroid hormone and calcium levels, consistent with PHPT.
Surgical management involved parathyroidectomy, leading to resolution of the brown tumors.

Implications:

This case underscores the necessity of including PHPT in the differential diagnosis of multiple bone lesions.
Early recognition and appropriate management of PHPT can prevent significant skeletal morbidity.
Awareness of uncommon presentations of endocrine disorders is crucial for accurate diagnosis and patient care.