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Serum Laboratory Studies, Stool Test, Breath Test01:30

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Gastrointestinal (GI) diagnostic studies are pivotal in confirming, ruling out, diagnosing, or staging various diseases, including cancers. Following diagnosis, allocating time for discussions with the patient and providing informational resources is crucial. Diagnostic assessments of the GI tract often occur in outpatient settings like endoscopy suites or GI labs. Preparation for these tests may include dietary restrictions, fasting, liquid bowel preparations, laxatives, enemas, and the...
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Metastasis is the spread of cancer cells from the original site to distant locations in the body. Cancer cells can spread via blood vessels (hematogenous) as well as lymph vessels in the body.
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The epithelial-to-mesenchymal transition or EMT is a developmental process commonly observed in wound healing, embryogenesis, and cancer metastasis. EMT is induced by transforming growth factor-beta (TGF-β) or receptor tyrosine kinase (RTK) ligands, which further...
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Related Experiment Video

Updated: Feb 21, 2026

Advanced Animal Model of Colorectal Metastasis in Liver: Imaging Techniques and Properties of Metastatic Clones
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Multiple small intestinal metastatic tumours: from basics to advanced testing.

Sayed A Almahari1, Abed M Zaitoun1,2,3, Mina Fouad2,3,4

  • 1Department of Cellular Pathology, Nottingham University Hospitals NHS Trust, Queen's Medical Centre, Derby Road, Nottingham NG7 2UH, Nottinghamshire, United Kingdom.

Oxford Medical Case Reports
|February 20, 2026
PubMed
Summary

This case study shows how combining histopathology, immunohistochemistry, and molecular genetics is crucial for differentiating metastatic small bowel tumors from primary ones. Accurate diagnosis aids in appropriate treatment strategies for adenocarcinoma.

Area of Science:

  • Oncology
  • Gastroenterology
  • Genetics

Background:

  • Metastatic small bowel tumors can present with gastrointestinal bleeding, mimicking primary small intestinal adenocarcinoma.
Keywords:
antigenic driftdedifferentiated carcinomagastrointestinal bleedinglung adenocarcinomamolecular diagnosticssmall intestinal neoplasms

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  • Distinguishing between primary and metastatic adenocarcinoma is critical for effective treatment planning.