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Related Concept Videos

Simple Staining Technique01:24

Simple Staining Technique

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OverviewStaining techniques in microscopy enhance the visualization of microorganisms by increasing contrast and allowing the differentiation of cellular structures. Simple staining is one of the fundamental methods used to observe the basic morphological characteristics of microorganisms, including their size, shape, and arrangement. This method relies on the application of a single dye to stain the entire cell, producing a clear contrast between the cell and the background.FixationFixation is...
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Differential staining is an essential microbiological technique that exploits variations in cell wall structures to classify and identify microorganisms. It facilitates the distinction of bacteria, aiding in diagnostic and research applications. Two of the most widely used differential staining methods are Gram staining and acid-fast staining, both of which rely on the chemical and structural differences in bacterial cell walls.Gram Staining TechniqueGram staining differentiates bacteria by...
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Specialized staining techniques play a vital role in microbiology by enabling the visualization of specific bacterial structures that remain undetectable with standard microscopy methods. These techniques not only enhance the structural visualization of bacterial cells but also provide critical insights into their pathogenicity and classification. Additionally, they support diagnostic and research endeavors in microbiology by identifying key bacterial features.Capsule Staining for Virulence...
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Plant Cells and Tissues02:01

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Plant tissues are collections of similar cells performing related functions. Different plant tissues will have their own specialized roles and can be combined with other tissues to form organs such as flowers, fruit, stem, and leaves. Two major types of plant tissue include meristematic and permanent tissue.
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Combinatorial gene control is the synergistic action of several transcriptional factors to regulate the expression of a single gene. The absence of one or more of these factors may lead to a significant difference in the level of gene expression or repression.
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Related Experiment Video

Updated: Jan 26, 2026

Visualizing Scar Development Using SCAD Assay - An Ex-situ Skin Scarring Assay
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Visualizing Scar Development Using SCAD Assay - An Ex-situ Skin Scarring Assay

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SOX-10 staining in dermal scars.

Emily L Behrens1, William Boothe1, Nerissa D'Silva2

  • 1Department of Dermatology, Texas Tech University Health Sciences Center, Lubbock, Texas.

Journal of Cutaneous Pathology
|April 6, 2019
PubMed
Summary
This summary is machine-generated.

SOX-10 staining in scars can mimic melanoma, potentially leading to misdiagnosis. This study identifies SOX-10 positive histiocytes in scar tissue, highlighting a diagnostic pitfall for dermatopathologists evaluating melanocytic neoplasms.

Keywords:
CD68MART-1SOX-10dermal dendritic celldesmoplastic melanomahistiocytesimmunohistochemical stainsscars

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Area of Science:

  • Dermatopathology
  • Surgical Pathology
  • Oncology

Background:

  • SOX10 and S100 protein staining are crucial for diagnosing melanocytic neoplasms like melanoma.
  • Non-melanocyte SOX10 positivity in re-excision specimens can complicate melanoma evaluation, especially with desmoplastic components.
  • Quantifiable data on SOX10 staining in scars is needed to prevent false positives.

Purpose of the Study:

  • To investigate the presence and characteristics of SOX10-positive cells in scar tissue within re-excision specimens.
  • To assess the potential diagnostic pitfall of SOX10 staining in evaluating melanocytic neoplasms.
  • To characterize the lineage of SOX10-positive cells in scars.

Main Methods:

  • Retrospective analysis of 50 re-excision specimens (SCC or SCCIS) from 2013-2017.
  • SOX10 immunohistochemical staining of scar blocks, with quantification of positive cells.
  • Morphological analysis of SOX10-positive cells and concurrent MART-1 and CD68 staining.

Main Results:

  • All 50 specimens exhibited SOX10 positivity in histiocytes.
  • SOX10-positive histiocytes were found in 86% of scar tissues, often with atypical nuclear features.
  • CD68 staining was positive, while MART-1 staining was negative in these areas, suggesting a non-melanocytic origin.

Conclusions:

  • SOX10 staining in scars can present a diagnostic challenge, potentially mimicking melanoma.
  • A previously undescribed pattern of SOX10-positive cells, likely histiocytes, exists in scar tissue.
  • Awareness of this finding aids dermatopathologists in accurately diagnosing melanocytic neoplasms.