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Related Concept Videos

The Availability Heuristic01:08

The Availability Heuristic

A heuristic is a general problem-solving framework (Tversky & Kahneman, 1974). You can think of these as mental shortcuts that are used to solve problems. Different types of heuristics are used in different types of situations, and the impulse to use a heuristic occurs when one of five conditions is met (Pratkanis, 1989):

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Related Experiment Video

Updated: May 20, 2026

High-throughput Fluorometric Measurement of Potential Soil Extracellular Enzyme Activities
12:33

High-throughput Fluorometric Measurement of Potential Soil Extracellular Enzyme Activities

Published on: November 15, 2013

[Not Available].

B Landi

    Journal De Chirurgie
    |July 17, 2012
    PubMed
    Summary
    This summary is machine-generated.

    Gastrointestinal stromal tumors (GISTs) are common stomach tumors. Diagnosis uses endoscopy and EUS, with surgery as the primary treatment for localized GISTs.

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    Area of Science:

    • Gastroenterology
    • Oncology
    • Surgical Oncology

    Context:

    • Gastrointestinal stromal tumors (GISTs) are the most common mesenchymal tumors in the GI tract, predominantly originating in the stomach.
    • Endoscopy and endoscopic ultrasonography (EUS) are key diagnostic modalities for GISTs.
    • Histological diagnosis can be obtained via fine-needle aspiration biopsies (FNABs).

    Purpose:

    • To outline the diagnostic approach to GISTs.
    • To discuss the current treatment standards for localized GISTs.

    Summary:

    • GISTs are the most frequent intramural mesenchymal tumors of the GI tract, with 65% occurring in the stomach.
    • Endoscopy is the primary diagnostic tool for moderate-sized tumors (<5cm), while EUS differentiates GISTs from other submucosal tumors.
    • Surgery is the gold standard for localized GISTs; endoscopic resection is not recommended.

    Impact:

    • Provides a concise overview of GIST diagnosis and management.
    • Highlights the importance of EUS in differentiating GISTs.
    • Reinforces surgical resection as the standard treatment for localized GISTs.