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Related Concept Videos

Imaging Studies VII: Vascular Imaging01:19

Imaging Studies VII: Vascular Imaging

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DefinitionRenal angiography, also known as renal arteriography, is an imaging technique used to obtain a comprehensive view of blood flow and the vascular structure of blood vessels in the kidneys and surrounding areas.PurposeRenal angiography detects blood vessel abnormalities in the kidneys, such as aneurysms, stenosis, thrombosis, vascular tumors, and renal artery stenosis. It evaluates kidney function and guides interventional treatments like angioplasty or stent placement.Pre-Procedure...
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Imaging Studies III: Computed Tomography01:27

Imaging Studies III: Computed Tomography

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DefinitionComputed Tomography (CT) of the genitourinary (GU) tract is a non-invasive imaging modality that utilizes X-rays and computer processing to generate detailed cross-sectional images of the urinary system, encompassing the kidneys, ureters, bladder, and adjacent structures such as the adrenal glands.PurposeCT scans of the GU tract serve several diagnostic and therapeutic purposes, including:Diagnosis of Urinary Tract Diseases: Detects kidney stones, tumors, cysts, and congenital...
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Imaging Studies I: CT and MRI01:14

Imaging Studies I: CT and MRI

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Introduction: MRI and CT scans are crucial advancements in medical imaging techniques, playing a vital role in diagnosing conditions related to the gastrointestinal (GI) system. Each scan serves distinct purposes, targets specific areas, and requires unique nursing duties.
Description of the Procedures
Computed Tomography (CT) scan:
Computed Tomography (CT) scans use X-ray technology to generate detailed images of bones, organs, and tissues. During the scan, the patient lies on a moving table...
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Imaging Studies for Cardiovascular System IV: CMRI01:21

Imaging Studies for Cardiovascular System IV: CMRI

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Cardiovascular magnetic resonance imaging, or CMRI, is a non-invasive diagnostic test that employs a magnetic field and radiofrequency waves to create precise images of the heart and arteries. It provides comprehensive information about cardiac anatomy, function, perfusion, and tissue characterization without ionizing radiation.IndicationsCMRI diagnoses various heart conditions, including tissue damage from heart attacks, ischemic heart disease, myocarditis, aortic issues (tears, aneurysms,...
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Imaging Studies II: Ultrasonography01:24

Imaging Studies II: Ultrasonography

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IntroductionUltrasonography, or renal ultrasound, is a noninvasive medical imaging technique that uses high-frequency sound waves to visualize the kidneys, ureters, bladder, and surrounding tissues.Indications for Urinary System UltrasonographyUrinary system ultrasonography is indicated in various clinical scenarios, such as:Kidney Stones (Urolithiasis): To detect and monitor the size and presence of kidney or urinary tract stones.Hydronephrosis: To assess the dilation of the renal pelvis and...
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Updated: Sep 30, 2025

Multimodal Volumetric Retinal Imaging by Oblique Scanning Laser Ophthalmoscopy oSLO and Optical Coherence Tomography OCT
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Multimodal imaging in choroidal osteomas.

Sugandha Goel1, Sudipta Das1, A Joash Rijey1

  • 1Aditya Birla Sankara Nethralaya, Kolkata, West Bengal, India.

GMS Ophthalmology Cases
|March 16, 2022
PubMed
Summary
This summary is machine-generated.

Choroidal osteoma, a rare benign eye tumor, presents unique imaging findings. Multimodal imaging aids in diagnosing this posterior pole lesion, with one case showing response to treatment for associated neovascularization.

Keywords:
choroidal osteomainfrared reflectancemulticolor imagingmultimodal imagingosteoma

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Area of Science:

  • Ophthalmology
  • Medical Imaging
  • Oncology

Background:

  • Choroidal osteoma is an uncommon, benign tumor located in the posterior segment of the eye.
  • Accurate diagnosis and characterization are crucial for patient management.

Observation:

  • Multimodal imaging was utilized to examine two distinct cases of choroidal osteoma.
  • Key imaging features included yellowish-orange subretinal lesions, greenish hues on multicolor imaging, hyporeflectance on infrared, and echogenic plaques on B-scan ultrasound.
  • Fluorescein angiography (FFA) revealed hyperfluorescence, while indocyanine green (ICG) angiography showed hypocyanescence. Enhanced depth imaging optical coherence tomography (EDI OCT) demonstrated increased choroidal thickness and elevated retinal pigment epithelium.

Findings:

  • The first case presented typical imaging characteristics of choroidal osteoma.
  • The second case exhibited choroidal osteoma with an active choroidal neovascular membrane.

Implications:

  • Multimodal imaging provides comprehensive diagnostic information for choroidal osteoma.
  • Prompt identification of complications like choroidal neovascularization is essential.
  • Intravitreal ranibizumab demonstrated efficacy in treating choroidal neovascularization secondary to choroidal osteoma.