Duodenal Bulb Nec
Duodenal Bulb Nec - Related Videos
08:30
Imaging Odor-Evoked Activities in the Mouse Olfactory Bulb using Optical Reflectance and Autofluorescence Signals
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Cited by 9 •
2011
This article presents the protocols of intrinsic optical signals and flavoproteins autofluorescence signals imaging to map odor-evoked activities at the surface of the olfactory bulb in mice.
11:08
Recording Temperature-induced Neuronal Activity through Monitoring Calcium Changes in the Olfactory Bulb of Xenopus laevis
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Cited by 3 •
2016
Here we describe a protocol for measuring and analyzing temperature responses in the olfactory bulb of Xenopus laevis. Olfactory receptor neurons and mitral cells are differentially stained, after which calcium changes are recorded, reflecting a sensitivity of some neural networks in the bulb to temperature drops induced at the nose.
06:32
Quadruple Immunostaining of the Olfactory Bulb for Visualization of Olfactory Sensory Axon Molecular Identity Codes
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2017
Olfactory sensory neurons express a wide variety of axon-sorting molecules to establish proper neural circuitry. This protocol describes an immunohistochemical staining method to visualize combinatorial expressions of axon-sorting molecules at the axon termini of olfactory sensory neurons.
08:18
Targeting Olfactory Bulb Neurons Using Combined In Vivo Electroporation and Gal4-Based Enhancer Trap Zebrafish Lines
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Cited by 8 •
2011
The temporal and spatial resolution of genetic manipulations determines the spectrum of biological phenomena that they can perturb. Here we use temporally and spatially discrete in vivo electroporation, combined with transgenic lines of zebrafish, to induce expression of a GFP transgene specifically in neurons of the developing olfactory bulb.
10:41
Robotic D3 Partial Duodenal Resection with Primary Side-to-Side Anastomosis
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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.
FAQs
Reduced blood flow deprives affected tissue of the support needed to maintain mucosal integrity. Cellular injury can then develop, followed by ulceration and deeper tissue damage. This progression matters because injury that begins at the mucosal surface may compromise the intestinal wall, increasing the clinical seriousness of the condition and influencing the urgency of evaluation and management.
Several insults may initiate the process, including impaired blood flow, severe inflammation, and chemical injury. These causes do not represent identical mechanisms, but each can disrupt the mucosa and begin a sequence of cellular injury, ulceration, and necrosis. Considering the possible initiating process helps clinicians interpret findings and distinguish the condition from other forms of proximal intestinal damage.
Involvement beyond the mucosa indicates that damage may be extending through the intestinal wall rather than remaining superficial. That distinction is clinically important because wall compromise can lead to serious complications and may alter the balance between medical and surgical management. Assessment therefore focuses not only on identifying injury, but also on determining its depth and consequences.
Evaluation combines clinical symptoms with laboratory findings, endoscopy, and imaging rather than relying on a single observation. Endoscopy can directly assess the duodenal bulb, while imaging contributes additional information about the surrounding intestinal condition. When tissue confirmation is needed, histopathology examines the specimen for damage, helping establish the nature and extent of the injury.
The distinction depends on integrating symptoms, laboratory results, endoscopic appearances, imaging findings, and, when available, histopathology. Peptic ulcer disease and perforation can overlap clinically with tissue injury in the duodenal bulb, so no isolated finding necessarily settles the diagnosis. Careful comparison is important because the underlying process and severity may require different management decisions.
Diagnosis clarifies whether tissue injury is present, how extensively the intestinal wall may be compromised, and whether the findings resemble another condition such as peptic ulcer disease or perforation. Clinicians use that combined assessment to select appropriate medical or surgical management. Early recognition is valuable because progressive damage can produce serious complications and increase the need for intervention.