Duodenal Biopsy
Duodenal Biopsy - Related Videos
06:43
Robotic Duodenal Sleeve Resection for Gastrointestinal Stromal Tumor with Rare Exon 8 KIT Mutation Following Neoadjuvant Imatinib
0 Views •
2026
This video case report demonstrates the unique management of a duodenal gastrointestinal stromal tumor with a rare, understudied, exon 8 KIT mutation. Neoadjuvant therapy resulted in a 30% reduction in tumor size, making the patient a candidate for a robotic-assisted duodenal sleeve resection instead of the more morbid pancreaticoduodenectomy.
10:41
Robotic D3 Partial Duodenal Resection with Primary Side-to-Side Anastomosis
0 Views •
2023
This protocol presents a case of a robotic partial duodenal resection with primary side-to-side duodeno-jejunal reconstruction in a patient with a 5 cm duodenal stenosis. This is done at the third duodenal segment (D3) after an endoscopic mucosal resection (EMR) for a duodenal polyp.
05:26
A Standardized Liquid Biopsy Preanalytical Protocol for Downstream Circulating-Free DNA Applications
0 Views •
Cited by 3 •
2022
The liquid biopsy has revolutionized our approach to oncology translational studies, with sample collection, quality, and storage being crucial steps for its successful clinical application. Here we describe a standardized and validated protocol for downstream circulating-free DNA applications that can be applied in most translational research laboratories.
02:20
Generating an Excisional Skin Wound in a Mouse Model via Punch Biopsy
0 Views •
2025
This video demonstrates a punch biopsy procedure to create a precise wound in a mouse model. The excision exposes the subcutaneous layer of the skin, providing a suitable site for studying immune responses to localized pathogen infection.
09:01
A Technique for Subcutaneous Abdominal Adipose Tissue Biopsy via a Non-diathermy Method
0 Views •
Cited by 7 •
2017
We standardized an abdominal adipose tissue biopsy using a non-diathermy method performed under local anesthesia. Three cases of excessive post-operation bleeding out of 115 operations (2.61%) occurred.We conclude that an abdominal adipose tissue surgical biopsy using a non-diathermy method can be safely applied to healthy men.
FAQs
Examination can identify damage to the villi, the projections that contribute to the intestine’s absorptive surface, as well as inflammatory changes, infection-related findings, and abnormal cell growth. These observations help connect visible tissue architecture with impaired intestinal function. The pattern and extent of microscopic abnormality can therefore support disease recognition and classification rather than providing only a record of tissue removal.
Freshly collected tissue does not automatically display the cellular and architectural details needed for interpretation. Preservation maintains the sample, sectioning creates thin portions for microscopic examination, and staining makes relevant structures and abnormalities more distinguishable. Together, these laboratory steps convert a small tissue specimen into an analyzable preparation that can reveal villous injury, inflammation, infection, or abnormal cellular growth.
The microscopic arrangement of the duodenal lining provides evidence about how disease may interfere with intestinal activity. Villous injury can indicate disruption of structures associated with absorption, while inflammatory or infectious changes show other forms of tissue disturbance. By comparing architecture with the clinical concern, investigators can relate cellular abnormalities to problems such as malabsorption and improve biological interpretation.
Suspected celiac disease is an important setting because the procedure can document disease-related changes in the duodenal lining, including villous injury. Microscopic evaluation adds structural evidence to the diagnostic investigation and can help classify the tissue abnormality. This makes the biopsy valuable not only for identifying a possible disorder, but also for examining how intestinal architecture is altered.
During an upper gastrointestinal endoscopy, a flexible instrument is guided through the digestive tract to the duodenum. Biopsy forceps passed through the instrument remove small samples from the intestinal lining. The specimens are then preserved for laboratory preparation, where they are sectioned, stained, and examined microscopically. This workflow links direct access to tissue with standardized structural analysis.
Results are especially useful when investigating malabsorption or suspected celiac disease, but the tissue can also reveal inflammatory changes, infection, or abnormal cell growth. Clinicians can use these findings to support diagnosis and disease classification. In research, the samples provide a way to study relationships between intestinal microscopic structure and function within gastrointestinal biology.
Duodenal tissue offers biological information at the level of cells and tissue architecture, rather than relying only on broader functional observations. Microscopic evaluation can show how the intestinal lining changes in disease and how those changes relate to function. Consequently, the method supports research into normal and abnormal gastrointestinal biology while providing tissue-based evidence for classifying disease-related patterns.