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Related Concept Videos

Histology of the Small Intestine01:27

Histology of the Small Intestine

863
The small intestine exhibits a unique histological structure that significantly enhances its function in digestion and nutrient absorption. These structures include circular folds, villi, and various specialized cells that collectively facilitate the digestion of food.
The intestinal lining features transverse folds called circular folds, each housing fingerlike projections known as intestinal villi. These villi are covered by a layer of simple columnar epithelium, also referred to as...
863

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Establishment and Characterization of Small Bowel Neuroendocrine Tumor Spheroids
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Small Bowel Neuroendocrine Neoplasms-A Review.

Sai Swarupa Vulasala1, Mayur Virarkar2, Dheeraj Gopireddy2

  • 1From the Department of Radiology, University of Florida College of Medicine, Jacksonville.

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|December 18, 2023
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This summary is machine-generated.

Small bowel neuroendocrine neoplasms (SB-NENs) are often asymptomatic and metastatic at diagnosis. This review covers their molecular, histological, and imaging features, aiding diagnosis and guiding therapy for these rare tumors.

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Area of Science:

  • Oncology
  • Gastroenterology
  • Radiology

Background:

  • Small bowel neuroendocrine neoplasms (SB-NENs) are rare tumors that present asymptomatically, often with metastases.
  • Understanding the molecular and histological characteristics of SB-NENs is crucial for diagnosis and treatment.

Purpose of the Study:

  • To provide a comprehensive review of small bowel neuroendocrine neoplasms (SB-NENs).
  • To detail the molecular, histological, and imaging features relevant for diagnosis and therapy guidance.

Main Methods:

  • Review of current literature on SB-NENs.
  • Analysis of molecular mechanisms, including somatic cell number alterations and epigenetic mutations.
  • Evaluation of histological findings, grading, and rare variants.
  • Assessment of conventional and advanced imaging techniques (CT, MRI, CECT, PET) for diagnosis, staging, and follow-up.
  • Discussion of therapeutic imaging modalities like peptide receptor radionuclide therapy.

Main Results:

  • SB-NENs exhibit diverse molecular underpinnings, including somatic mutations and epigenetic changes.
  • Histological grading and identification of rare mixed tumors are essential for classification.
  • Advanced imaging modalities play a critical role in diagnosing, staging, and monitoring SB-NENs.
  • Peptide receptor radionuclide therapy represents a key therapeutic application of imaging.

Conclusions:

  • Accurate diagnosis and staging of SB-NENs rely on integrating molecular, histological, and advanced imaging data.
  • Personalized therapeutic strategies, informed by imaging, are crucial for managing SB-NENs.
  • Further research into the molecular basis and therapeutic applications of imaging in SB-NENs is warranted.