Sinus Tract Expansion
Sinus Tract Expansion - Related Videos
08:46
Nose, Sinuses, Oral Cavity and Pharynx Exam
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2023
Source: Richard Glickman-Simon, MD, Assistant Professor, Department of Public Health and Community Medicine, Tufts University School of Medicine, MA This video provides an overview of sinus, nose, and throat examinations. The demonstration begins with a brief overview of the anatomy of the region. The upper third of the nose is bony, and the bottom two-thirds are cartilaginous. Air entering the nares passes through the nasal vestibules and into the narrow passageway between the nasal septum...
06:43
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Cited by 51 •
2013
We describe procedures to quantify and characterize atherosclerotic lesions in mouse models using precision sectioning of the aortic sinus and ascending aorta combined with histochemical and immunohistochemical analysis.
07:34
Establishment of a Modified Ferric Chloride-Induced Superior Sagittal Sinus Thrombosis
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2025
This study presents a protocol for establishing a reproducible, minimally invasive rat model of superior sagittal sinus thrombosis induced by ferric chloride, utilizing a silk-suture method in combination with laser speckle contrast imaging and high-resolution ultrasound for evaluation.
08:44
Formation of Human Prostate Epithelium Using Tissue Recombination of Rodent Urogenital Sinus Mesenchyme and Human Stem Cells
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Cited by 10 •
2013
To unravel the earliest molecular mechanisms underlying prostate cancer initiation, novel and innovative human model systems and approaches are desperately needed. The potential of pre-prostatic urogenital sinus mesenchyme (UGSM) to induce pluripotent stem cell populations to form human prostate epithelium is a powerful experimental tool in prostate research.
06:47
Retrograde Loading of Nerves, Tracts, and Spinal Roots with Fluorescent Dyes
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Cited by 5 •
2012
We describe a simple and low cost technique for introducing high concentration of fluorescent and calcium-sensitive dyes into neurons or any neuronal tract using a polyethylene suction pipette.
FAQs
Several processes can act together: persistent inflammation injures nearby tissue, microbial activity sustains the inflammatory focus, retained fluid creates pressure, and enzymes contribute to tissue breakdown. As damage accumulates, the passage may extend or enlarge along available tissue planes. These interacting forces explain why ongoing disease can produce a progressively more extensive tract rather than a stable wound.
Granulation tissue can line the developing passage as the body responds to ongoing injury and inflammation. This lining helps maintain a defined channel while the underlying inflammatory, microbial, pressure, and enzymatic processes continue. Consequently, visible drainage may persist even when the external opening appears small, because the internal tract can remain active and extend beyond the surface site.
Tissue structure influences the direction of progression. Damaged or more easily separated planes offer less resistance than intact surrounding tissue, so pressure, fluid, and enzymatic breakdown can guide the tract along those routes. Understanding this pattern helps explain why the external opening may not directly reveal the full internal course or the location of the original inflammatory focus.
Continuation is favored when the underlying inflammatory focus remains active, microbial activity persists, or retained fluid keeps exerting pressure. Enzymatic tissue breakdown adds further damage, while the developing granulation-tissue lining supports a continuing channel. Together, these conditions can produce either additional lengthening, widening, or deeper extension, making the process important to evaluate rather than treating only the surface opening.
Assessment centers on recognizing the pattern of a draining wound, chronic abscess, fistula, or related imaging finding and then defining where the tract begins and how it travels. Imaging findings can help reveal deeper extension that is not apparent at the skin surface. Establishing this anatomy supports a more complete diagnostic assessment of the involved tissues.
The tract’s origin and course provide information about the underlying source and the extent of tissue involvement. That information can guide infection-control decisions and surgical planning by showing whether disease extends beyond the visible opening. Accurate definition also helps clinicians judge whether treatment has addressed the deeper process rather than only the externally draining portion.
A persistent or progressively larger tract may signal continuing inflammation, microbial activity, retained fluid, or tissue breakdown at an unresolved focus. Its course can also suggest deeper tissue involvement that requires attention beyond the surface wound. After treatment, evaluating the tract and its source helps clinicians assess whether the process is resolving or whether recurrence remains a concern.