Rectal Polyp
Rectal Polyp - Related Videos
09:39
Male Rectal Exam
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2023
Source: Joseph Donroe, MD, Internal Medicine and Pediatrics, Yale School of Medicine, New Haven, CT While its usefulness in cancer screening is debated, the male rectal examination remains an important part of the physical exam. The exam is indicated in selected patients with lower urinary tract symptoms, urinary and/or fecal incontinence or retention, back pain, anorectal symptoms, abdominal complaints, trauma patients, unexplained anemia, weight loss, or bone pain. There are no absolute...
09:58
Investigating the Three-dimensional Flow Separation Induced by a Model Vocal Fold Polyp
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Cited by 2 •
2014
Vocal fold polyps can disrupt vocal fold dynamics and thus can have devastating consequences on a patient's ability to communicate. Three-dimensional flow separation induced by a wall-mounted model polyp and its impact on the wall pressure loading are examined using particle image velocimetry, skin friction line visualization, and wall pressure measurements.
01:27
Assessing Body Temperature - Rectal
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2025
Rectal temperature measurement is considered the most precise method for assessing core body temperature and typically registers higher than oral temperature. For adults, the rectal thermometer should be inserted 1 to 1.5 inches into the rectum to obtain the most accurate reading. Follow these steps for rectal temperature assessment: Step 1: Perform hand hygiene and don clean gloves to prevent cross-infection. Step 2: Position the patient in a side-lying position to better visualize the rectal...
04:09
The Pocket-Creation Procedure of Endoscopic Submucosal Dissection for Large Rectal Laterally Spreading Tumors
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Cited by 1 •
2026
This study details a standardized PCM-ESD protocol for resecting large rectal LSTs, aiming to enhance dissection speed and prevent transmural perforation via submucosal tunneling.
03:02
Immunohistochemical Staining of S-100 Protein in Human Rectal Suction Biopsy Sections
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2025
This video demonstrates the immunohistochemical staining for S-100 protein in rectal suction biopsy sections. Antigen-retrieved sections are blocked and treated with primary, followed by secondary antibodies against S-100, a marker of Hirschsprung's disease. Chromogenic substrate is added to stain the targeted cells. Samples are dehydrated and mounted before visualizing under the microscope.
FAQs
Risk depends largely on whether the lesion is non-neoplastic or neoplastic and, among neoplastic lesions, whether it has an adenomatous or serrated pattern. These categories reflect different types of abnormal mucosal-cell proliferation. Classifying the lesion therefore helps clinicians connect its microscopic features with potential colorectal cancer risk.
Visual appearance can suggest that a rectal polyp warrants closer characterization, but microscopic architecture provides the tissue-level information needed to classify it. Examining how the lesion is organized under histopathological analysis helps distinguish relevant polyp categories and supports assessment of whether its pattern is associated with greater colorectal cancer concern.
The overview identifies adenomatous and serrated lesions as neoplastic examples, whereas non-neoplastic polyps represent a separate category. This distinction is important because classification is not merely descriptive: it organizes interpretation of abnormal mucosal proliferation and helps determine how the finding contributes to cancer-prevention planning and follow-up.
Detection may begin with a rectal examination and can extend to sigmoidoscopy or colonoscopy. These approaches allow clinicians to recognize the lesion within the rectum and assess its visible appearance. The choice among these evaluation settings provides a pathway from initial identification to tissue sampling and definitive classification.
Histopathological analysis examines removed polyp tissue rather than relying only on what is seen during an examination. It helps establish the lesion’s category and architecture, information that supports risk assessment. That characterization can then guide surveillance intervals, making follow-up responsive to the findings rather than based solely on the initial visual impression.
Rectal polyps provide a clinical setting for studying the cellular changes underlying colorectal tumor development. Their classification links abnormal mucosal-cell proliferation with tissue architecture and clinical evaluation. In medicine, this connection supports early cancer prevention; in research, it helps investigators relate microscopic patterns to the cellular processes being examined in colorectal disease.