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Related Concept Videos

Glaucoma: Overview01:25

Glaucoma: Overview

770
Glaucoma is an eye condition characterized by increased intraocular pressure that damages the retina and optic nerve, leading to irreversible blindness if left untreated. The human eye has various components, including the cornea, iris, pupil, lens, and optic nerve. Aqueous humor is secreted by the epithelium of the ciliary body in the posterior chamber and flows through the trabecular meshwork and canal of Schlemm, maintaining normal intraocular pressure. The trabecular meshwork and the canal...
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Open Angle Glaucoma: Treatment01:27

Open Angle Glaucoma: Treatment

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In open-angle glaucoma, the iridocorneal angle remains open, but the trabecular meshwork becomes stiff, slowing down the outflow of aqueous humor. This causes a buildup of aqueous humor in the anterior chamber, leading to a sudden increase in intraocular pressure. The treatment for open-angle glaucoma focuses on reducing the elevated intraocular pressure by either decreasing the secretion of aqueous humor or increasing its outflow.
Drugs such as carbonic anhydrase inhibitors, α2- and...
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Angle Closure Glaucoma: Treatment01:28

Angle Closure Glaucoma: Treatment

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Angle-closure glaucoma, or closed-angle glaucoma, is an eye condition where the iris bulges out and blocks the iridocorneal angle, resulting in a buildup of aqueous humor and increased intraocular pressure. Immediate medical attention is necessary due to the sudden onset of symptoms. The treatment for angle-closure glaucoma includes short-term and long-term approaches. Short-term treatment involves using eye drops like pilocarpine to lower intraocular pressure by increasing aqueous humor...
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Aneurysm II: Clinical Manifestations and Diagnostic Studies01:21

Aneurysm II: Clinical Manifestations and Diagnostic Studies

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Thoracic, aortic arch and abdominal aneurysms are significant vascular conditions that can present with various clinical manifestations and lead to serious complications. Understanding these manifestations and the appropriate diagnostic studies is essential for effective management and treatment.Thoracic Aortic AneurysmsThoracic aortic aneurysms often remain asymptomatic until they reach a size that impinges on adjacent structures. They typically cause deep, diffuse chest pain that radiates to...
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Updated: Sep 13, 2025

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Giant Choroidal Nevus-A Case Report.

Nina Staneva Stoyanova1,2, Marin Atanassov1,2, Vesela Todorova Mitkova-Hristova1,2

  • 1Department of Ophthalmology, Faculty of Medicine, Medical University of Plovdiv, 4000 Plovdiv, Bulgaria.

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|July 25, 2025
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Summary
This summary is machine-generated.

Giant choroidal nevi, large benign eye tumors, can mimic melanoma. Regular monitoring is crucial for early detection of malignant transformation in these pigmented lesions.

Keywords:
choroidal nevusmelanoma

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Area of Science:

  • Ophthalmology
  • Oncology
  • Medical Imaging

Background:

  • Choroidal nevi are common, benign pigmented growths in the eye.
  • Giant choroidal nevi (>10 mm) present diagnostic challenges, potentially mimicking malignant melanoma.

Observation:

  • A 48-year-old woman presented with a large (11.55 mm) pigmented lesion in the left fundus.
  • Ophthalmoscopy revealed drusen-like deposits and retinal pigment epithelium atrophy.
  • Ultrasound and OCT confirmed lesion size and absence of subretinal fluid.

Findings:

  • Diagnosis of a giant choroidal nevus was suspected.
  • The lesion showed signs of a chronic process, not active malignancy.
  • A one-year follow-up revealed no significant changes.

Implications:

  • Differentiating giant choroidal nevi from melanoma is critical for appropriate management.
  • Pigmented lesion size is a risk factor for malignant transformation.
  • Long-term monitoring is essential for patients with large choroidal nevi.