En-bloc Resection
En-bloc Resection - Related Videos
05:18
Roux-en-Y Gastric Bypass Procedure: A Bariatric Surgical Procedure for Gastric Resectioning in Murine Model
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2025
This video describes a bariatric surgery-Roux-en-Y procedure. This involves the cutting of the jejunum- the middle portion of the intestine- to generate two intestinal limbs. The biliary limb is attached to the existing intestinal loop and the alimentary limb is attached to the stomach, creating a gastric bypass. The gastric bypass created here helps to decrease the nutrient uptake and efficiently reduces body weight.
04:41
Application of the En Bloc Concept Combined with Anatomic Resection in Laparoscopic Hepatectomy
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2023
Numerous studies have demonstrated the advantages of anatomic resection. Nonetheless, whether anatomic resection can increase R0 resection rates remains controversial. Consequently, the present study describes an innovative procedure involving the en bloc concept combined with anatomic resection in laparoscopic hepatectomy, which can reduce postoperative recurrence and metastasis.
10:01
En Face Preparation of Mouse Blood Vessels
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Cited by 20 •
2017
A procedure for making en face preparations of the mouse carotid artery and aorta is described. Such preparations, when immunofluorescently stained with specific antibodies, enable us to study localization of proteins and identification of cell types within the entire vascular wall by confocal microscopy.
03:58
Brain Tumor Resection in a Mouse Using a Minimally Invasive Resection System
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2025
Source: Alomari, S., et al. Implementation of Minimally Invasive Brain Tumor Resection in Rodents for High Viability Tissue Collection. J. Vis. Exp. (2022)This video demonstrates the use of a minimally invasive resection system (MIRS) to excise tumor tissue from an anesthetized mouse implanted with a tumor. The procedure involves securing the mouse onto a stereotactic frame, reopening the previous surgical site to access the brain, and inserting a specialized cannula that utilizes suction and a...
07:45
"Sun's Seven-Step Technique" for Endoscopic En-Bloc Resection of Thyroid Cancer via the Chest-Breast Approach
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2025
Endoscopic en bloc resection for thyroid carcinoma presents significant technical challenges, with current literature lacking comprehensive methodological descriptions. A systematic development and description of the "Sun's Seven-Step Technique" for endoscopic en-bloc thyroidectomy via the chest-breast approach was presented, demonstrating its superior operative efficiency, safety, and clinical feasibility.
FAQs
Maintaining the original relationships between the lesion and surrounding tissues allows the removed specimen to retain meaningful spatial information. Pathologists can then assess surgical margins in relation to the lesion and involved structures, rather than interpreting separately removed pieces. This orientation supports evaluation of whether excision was complete and contributes to subsequent treatment planning and prognostic assessment.
Planned tissue planes provide the intended route around the lesion and involved structures while reducing the need to cut through the target itself. Following these planes helps preserve the specimen as one oriented unit and supports removal of surrounding tissue that may be clinically relevant. The approach therefore links operative dissection with later pathological margin assessment.
Avoiding transection keeps the lesion intact and limits disruption of its relationship with adjacent tissue. This can reduce manipulation of diseased tissue and preserves a more interpretable specimen for pathological examination. In oncologic surgery, the intact specimen may provide clearer information about the extent of involvement, the status of margins, and the need for individualized further management.
The technique may include neighboring organs or structures when they are involved with the lesion and cannot be considered separately during removal. Treating the involved region as a single anatomical unit preserves the relationships that matter for pathological interpretation. Findings from that specimen can help clinicians evaluate disease extent and tailor treatment and prognostic assessment.
Planning centers on identifying the lesion, determining which surrounding tissue or structures are involved, and selecting tissue planes that permit removal without transecting the target. The surgical team also needs to preserve the specimen’s orientation as it is removed. These considerations connect the operative plan to complete excision, margin evaluation, and interpretation of anatomical involvement.
A single, oriented specimen gives pathology a more coherent view of the lesion, its surrounding tissue, and any involved structures. This supports assessment of excision completeness and clarifies the anatomical extent of disease. Clinicians can use those findings, together with the preserved specimen relationships, to guide individualized treatment planning and evaluate prognostic implications.