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Graves Disease II: Pathophysiology

Graves Disease II: Pathophysiology

Graves’ disease is an autoimmune disorder characterized by the production of thyroid-stimulating immunoglobulins (TSI) that activate TSH receptors, leading to excessive synthesis and release of thyroid hormones (T3 and T4) and resulting in hyperthyroidism.Among all causes of hyperthyroidism, Graves’ disease is the most common and can happen at any age, though it is more frequent in women. It produces a hypermetabolic state with features such as weight loss, tachycardia, tremor, and heat...

Graves' Disease I: Introduction

Graves' Disease I: Introduction

Graves' disease is an autoimmune disorder that causes hyperthyroidism, or overactivity of the thyroid gland. It results from autoantibodies called thyroid-stimulating immunoglobulins (TSIs), which bind to thyroid-stimulating hormone (TSH) receptors, leading to overstimulation of hormone production and a hypermetabolic state.EtiologyAlthough considered idiopathic, Graves’ disease has well-established contributing factors. There is a strong genetic component, with increased prevalence in...

Goiter

Goiter

Goiter refers to an abnormal enlargement of the thyroid gland that may appear as a diffuse goiter (uniform enlargement) or nodular (single or multiple nodules). Functionally, it is classified as nontoxic (normal/low hormone levels) or toxic (excess hormone production).PathophysiologyDiffuse thyroid enlargement typically results from prolonged stimulation by thyroid-stimulating hormone (TSH) or TSH-like agents, commonly seen in hypothyroidism or iodine deficiency. In contrast, in hyperthyroid...

Hyperthyroidism II: Pathophysiology

Hyperthyroidism II: Pathophysiology

Hyperthyroidism is a hypermetabolic state caused by elevated levels of thyroid hormones, triiodothyronine (T3) and thyroxine (T4). It results from dysregulation at the thyroid, pituitary, or immune system level and affects multiple organ systems.PathophysiologyThe most common cause of hyperthyroidism is Graves’ disease, an autoimmune disorder in which antibodies, specifically thyroid-stimulating antibodies (TSAb), a subtype of TSH receptor antibodies (TRAb), bind to and activate TSH receptors...

The Thyroid Gland

The Thyroid Gland

The thyroid gland is a small, butterfly-shaped gland located in the neck and covers the anterior surface of the trachea. The gland has two lateral lobes connected by a thin tissue mass called the isthmus. Internally, each lobe comprises many small spherical structures known as thyroid follicles, surrounded by a network of blood vessels.
The follicles have a central cavity lined by simple cuboidal to squamous epithelial cells called follicular cells. These cells produce the glycoprotein...

Hyperthyroidism I: Introduction

Hyperthyroidism I: Introduction

Hyperthyroidism is a type of thyrotoxicosis characterized by the thyroid gland's overproduction of the thyroid hormones triiodothyronine (T3) and thyroxine (T4). This hormone excess increases the basal metabolic rate and enhances sensitivity to catecholamines.DiagnosisDiagnosis is based on clinical features and biochemical testing. It typically shows suppressed thyroid-stimulating hormone (TSH) levels below 0.4 mIU/L, with elevated free T3 and/or T4. Additional tests, including thyroid...

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Three-Dimensional Reconstruction of Orbital Fractures

Three-Dimensional Reconstruction of Orbital Fractures

Published on: May 16, 2025

Orbital decompression in thyroid related orbitopathy.

Nachum Rosen¹, Guy J Ben Simon

¹Orbital & Ophthalmic Plastic Surgery Unit, Goldschleger Eye Institute Sheba Medical Center, Tel Hashomer, Israel. nachumrosen@hotmail.com

Pediatric Endocrinology Reviews : PER

|May 15, 2010

Summary

This summary is machine-generated.

Graves' disease can cause thyroid-related orbitopathy, leading to eye discomfort or vision loss. Orbital decompression surgery effectively relieves pressure symptoms and improves function for affected patients.

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Area of Science:

Ophthalmology
Endocrinology
Surgical Science

Background:

Thyroid-related orbitopathy is the most frequent extrathyroidal manifestation of Graves' disease.
While many patients experience mild symptoms, severe cases can lead to sight-threatening optic neuropathy or corneal exposure.
Orbital decompression is a surgical intervention to manage these complications.

Purpose of the Study:

To evaluate the efficacy of orbital decompression in managing thyroid-related orbitopathy.
To highlight the benefits of surgical intervention for patients with functional disability and cosmetic disfigurement.

Main Methods:

The study focuses on the mechanism of orbital decompression, involving orbital tissue expansion and globe repositioning.
Assessment of symptom alleviation, including pressure-related pain and compressive neuropathy.

Main Results:

Orbital decompression effectively expands orbital tissues and repositions the globe.
The procedure successfully alleviates pressure symptoms like pain and compressive neuropathy.
Surgical intervention is indicated for patients experiencing cosmetic disfigurement and functional impairment.

Conclusions:

Orbital decompression is a valuable surgical option for thyroid-related orbitopathy.
The procedure addresses both functional deficits and aesthetic concerns associated with Graves' disease.
Early surgical consideration is recommended for patients with significant disfigurement or functional disability.