Submucosal Masses
Submucosal Masses - Related Videos
04:09
The Pocket-Creation Procedure of Endoscopic Submucosal Dissection for Large Rectal Laterally Spreading Tumors
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Cited by 1 •
2026
This study details a standardized PCM-ESD protocol for resecting large rectal LSTs, aiming to enhance dissection speed and prevent transmural perforation via submucosal tunneling.
11:52
Isolation of Basal Cells and Submucosal Gland Duct Cells from Mouse Trachea
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Cited by 16 •
2012
Here we demonstrate our protocol for isolation of basal and submucosal gland duct cells from mouse tracheas. We also demonstrate the method of injecting stem cells into the dorsal mouse fat pad to create an in vivo model of submucosal gland regeneration.
05:57
ADSC-sheet Transplantation to Prevent Stricture after Extended Esophageal Endoscopic Submucosal Dissection
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Cited by 15 •
2017
This study reports a successful method of endoscopical adipose tissue-derived stromal cell (ADSC)-sheet transplantation for esophageal stricture prevention after an extended endoscopic submucosal dissection (ESD) in a swine model.
10:23
Lipid Droplet Isolation for Quantitative Mass Spectrometry Analysis
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Cited by 7 •
2017
Lipid droplets are important organelles for the replication of several pathogens, including the Hepatitis C Virus (HCV). We describe a method to isolate lipid droplets for quantitative mass spectrometry of associated proteins; it can be used under a variety of conditions, such as virus infection, environmental stress, or drug treatment.
01:52
Atomic Mass
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2020
Atoms — and the protons, neutrons, and electrons that compose them — are extremely small. For example, a carbon atom weighs less than 2 × 10−23 g. When describing the properties of tiny objects such as atoms, we use appropriately small units of measure, such as the atomic mass unit (amu). The amu was originally defined based on hydrogen, the lightest element, then later in terms of oxygen. Since 1961, it has been defined with regard to the most abundant isotope of carbon, atoms of which are...
FAQs
Endoscopic ultrasonography adds information that ordinary endoscopy cannot provide by showing the lesion’s wall layer of origin and internal characteristics. These findings help distinguish whether a smooth bulge is associated with the submucosa or a deeper portion of the organ wall. As a result, clinicians can refine the differential diagnosis and assess whether further evaluation is warranted.
Size, growth pattern, symptoms, and tissue features are central to risk assessment. A lesion that changes over time or produces symptoms may require a different evaluation from a stable, asymptomatic finding. These characteristics do not establish a diagnosis by themselves, but they help clinicians decide whether surveillance, tissue sampling, endoscopic removal, or surgery should be considered.
An intact mucosal surface and smooth contour describe how a lesion appears, not necessarily what it contains or where it originates. Submucosal masses may represent benign growths, cysts, vascular lesions, or neoplasms. Because these possibilities can look similar from the surface, information about the wall layer and internal features is important for meaningful differentiation.
Evaluation commonly begins with endoscopy to document the lesion’s appearance, including its shape and the condition of the overlying mucosa. Endoscopic ultrasonography can then identify the wall layer of origin and characterize internal features. Clinicians integrate those findings with size, growth pattern, symptoms, and tissue information when selecting surveillance, sampling, removal, or surgery.
The choice depends on the combined clinical and lesion-specific findings rather than appearance alone. Size, growth pattern, symptoms, wall-layer origin, internal characteristics, and tissue features all contribute to treatment planning. When these factors suggest limited concern, surveillance may be selected; other patterns may support tissue sampling, endoscopic removal, or surgical management.
Assessment supports three closely related goals: developing a differential diagnosis, estimating clinical risk, and planning treatment. Endoscopic and ultrasonographic findings can clarify the lesion’s origin and characteristics, while symptoms and growth behavior add clinical context. Together, these data help determine whether continued observation or an intervention such as sampling, endoscopic removal, or surgery is appropriate.