{"id":5855,"date":"2026-09-07T13:05:40","date_gmt":"2026-09-07T13:05:40","guid":{"rendered":"https:\/\/spesbio.com.tr\/?p=5855"},"modified":"2026-09-07T14:26:59","modified_gmt":"2026-09-07T14:26:59","slug":"tissue-marking-stains-their-use-and-importance-in-surgical-pathology","status":"publish","type":"post","link":"https:\/\/spesbio.com.tr\/en\/scientific-content\/tissue-marking-stains-their-use-and-importance-in-surgical-pathology\/","title":{"rendered":"Tissue Marking Dyes: Use and Importance in Surgical Pathology"},"content":{"rendered":"
\n\t\t\t\t
\n\t\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\t

In pathology laboratories, the evaluation of surgical material is not limited to simply examining the tissue under a microscope. Especially in tumor resections, accurately defining surgical margins and preserving anatomical aspects determined during macroscopic examination throughout histological analysis is of paramount importance.<\/p>\n

One of the main methods used in this process tissue marking dyes<\/strong>.<\/p>\n

Tissue marking dyes are special dyes used to mark specific surfaces, resection boundaries, or anatomical aspects of surgically removed tissue samples with different colors. The aim is to ensure that a region identified during macroscopic examination can be accurately identified after tissue tracking, paraffin block preparation, sectioning, and microscopic evaluation.<\/p>\n

Therefore, the application of tissue marking dye is more than just a simple coloring process., It is a labeling method that carries spatial information between macroscopic examination and microscopic evaluation.<\/strong><\/p>\n

Why is evaluating surgical margins important?<\/strong><\/p>\n

In surgically removed tumor material, the pathologist does not only evaluate the characteristics of the lesion. The relationship of the tumor to the surrounding tissues and its distance from the surgically created resection margins are also important parameters that need to be evaluated in many materials.<\/p>\n

During macroscopic examination, different surfaces or boundaries of the material can be identified. For example, a material may have different anatomical directions such as anterior, posterior, medial, lateral, superior, inferior, or deep surgical margins.<\/p>\n

Once the material is cut and divided into smaller tissue fragments, it can become difficult to trace these anatomical aspects simply by looking at the appearance of the tissue.<\/p>\n

Marking the texture surfaces with different colors provides a significant advantage at this point.<\/p>\n

For example, a laboratory might define the lateral boundary of a particular material as blue, the medial boundary as green, and the deep surgical boundary as black. When this color coding is accurately recorded, the stain seen under the microscope helps the pathologist identify the relevant surgical surface.<\/p>\n

How to Use Tissue Marking Dyes?<\/strong><\/p>\n

Tissue marking dyes are applied to the selected tissue surface during macroscopic examination.<\/p>\n

An ideal tissue marking dye is expected to adhere adequately to the tissue surface and maintain its marking properties as much as possible during routine histological procedures.<\/p>\n

The tissue then undergoes the routine histological process:<\/p>\n

Macroscopic examination \u2192 Tissue labeling \u2192 Fixation \/ tissue processing \u2192 Paraffin block \u2192 Microtome section \u2192 Histological staining \u2192 Microscopic evaluation<\/strong><\/p>\n

The colored marker remaining on the tissue surface at the end of this process can be seen under a microscope. By comparing it to the color code created during macroscopic examination, the pathologist can identify the relevant surface or surgical margin.<\/p>\n

This feature is particularly important in the evaluation of complex surgical materials.<\/p>\n

Why are multiple colors used?<\/strong><\/p>\n

In a simple material, marking a single surgical margin may suffice.<\/p>\n

However, in complex resection materials, it may be necessary to differentiate between multiple surfaces or surgical margins. In this case, the use of different colors allows for the identification of multiple areas on the same material.<\/p>\n

For example:<\/p>\n

Blue \u2192 lateral border<\/strong><\/p>\n

Green \u2192 medial border<\/strong><\/p>\n

Black \u2192 deep border<\/strong><\/p>\n

An in-laboratory coding system can be created in this way.<\/p>\n

The important point here is not that a particular color necessarily represents a specific anatomical aspect. It is crucial that the surfaces represented by the colors are clearly defined and noted in the macroscopic examination records.<\/p>\n

Therefore, color coding can be considered a system that helps to translate the anatomical orientation of the material into the histological process.<\/p>\n

Why is color selection important?<\/strong><\/p>\n

The availability of numerous color options in texture marking paints does not mean that every color is equally suitable for use together.<\/p>\n

Some colors may appear closer together after tissue tracing and histological processing, or may be more difficult to distinguish under a microscope.<\/p>\n

Therefore, the colors to be used on the same material should not be determined solely by their macroscopic appearance, They are selected based on how easily they can be distinguished from each other microscopically.<\/strong> It is important.<\/p>\n

Using similar tones together in the same material can make evaluation difficult.<\/p>\n

Using distinctly different colors together can therefore provide a practical advantage. However, it is important for laboratories to evaluate the products and color combinations they use within their own workflows.<\/p>\n

What to Expect from a Good Texture Marking Paint?<\/strong><\/p>\n

A tissue marking dye should not only color the tissue; several other properties are important for a marking dye used in a pathology laboratory.<\/p>\n

Good adhesion to the tissue surface.<\/strong><\/p>\n

The paint must be able to cover the surface to which it is applied adequately and homogeneously.<\/p>\n

Color preservation<\/strong><\/p>\n

The marking should remain recognizable after processes such as tissue tracking and paraffin block preparation.<\/p>\n

Microscopic visibility<\/strong><\/p>\n

It is important that the color, which is distinct macroscopically, is also distinguishable in the histological section.<\/p>\n

Sufficient contrast between the colors.<\/strong><\/p>\n

If multiple surgical margins are being marked, the colors used must be easily distinguishable from each other.<\/p>\n

Controlled application<\/strong><\/p>\n

Unnecessary spreading of the dye beyond the intended surface can complicate the interpretation of surgical margins. Therefore, the application method and the physical properties of the dye are important.<\/p>\n

Consistency with histological evaluation<\/strong><\/p>\n

The labeling material is expected to minimize its interference with tissue morphology and routine histological evaluation.<\/p>\n

Why is application technique important?<\/strong><\/p>\n

The performance of tissue marking dye does not depend solely on the product used.<\/p>\n

The preparation of the tissue surface and the method of applying the paint can also affect the result.<\/p>\n

In particular, the controlled removal of excess liquid from the surface can facilitate the direct application of the paint to the fabric surface.<\/p>\n

The paint can be applied to the tissue surface using a suitable applicator. The aim here is to:<\/p>\n

The goal is to create a thin, homogeneous, controlled marking layer that covers only the targeted surface.<\/strong><\/p>\n

Using excessive amounts of paint doesn't always mean better marking. Uncontrolled application can lead to spillage onto adjacent surfaces or the mixing of different colors.<\/p>\n

The application and usage instructions specified by the manufacturer of the product should be followed.<\/p>\n

In what areas are tissue marking dyes used?<\/strong><\/p>\n

One of its most important applications is marking the boundaries of surgical resection materials.<\/p>\n

In addition, tissue marking dyes;<\/p>\n

    \n
  • In the orientation of complex surgical materials,<\/li>\n
  • in identifying different surfaces on a material,<\/li>\n
  • in distinguishing different anatomical regions from each other,<\/li>\n
  • in monitoring specific macroscopic regions during histological examination<\/li>\n<\/ul>\n

    available.<\/p>\n

    Therefore, tissue marking dyes should not be seen merely as "a dye that stains the surgical margin,", a tool that helps preserve the positional information of a tissue sample throughout the histological process<\/strong> should be evaluated as such.<\/p>\n

    What is the difference between tissue marking dyes and H&E staining?<\/strong><\/p>\n

    Although both applications use the concept of "paint," their purposes are different.<\/p>\n

    Histological stains such as hematoxylin and eosin (H&E) are used to make cell and tissue structures microscopically visible and evaluable.<\/p>\n

    Tissue marking dyes are basically: to mark a specific surface or region of tissue and preserve this positional information.<\/strong> It is used for this purpose.<\/p>\n

    In other words:<\/p>\n

    H&E makes the microscopic structure of the tissue visible, while tissue marking dye helps to track which surface of the tissue or surgical margin is being evaluated.<\/strong><\/p>\n

    These two approaches are not alternatives to each other; they serve different purposes in the pathological evaluation process.<\/p>\n

    The Importance of Standardization<\/strong><\/p>\n

    Using a large number of colors in a laboratory alone does not constitute a successful labeling system.<\/p>\n

    The most important thing is that the colors are used consistently and in a registered manner.<\/p>\n

    Standardizing color codes within the laboratory, keeping clear records of macroscopic examinations, and ensuring that the colors used are easily distinguishable from each other support the evaluation process.<\/p>\n

    For example, in a macroscopic report:<\/p>\n

    \u201c"The deep surgical margin was marked in black, the lateral margin in blue, and the medial margin in green."\u201d<\/strong><\/p>\n

    A clear record in this form helps to accurately follow the meaning of the colors during microscopic evaluation.<\/p>\n

    Therefore, a successful tissue labeling process relies on the combined management of three key elements:<\/p>\n

    Correct application + distinguishable colors + clear documentation<\/strong><\/p>\n

    Cancer Diagnostics Tissue Marking Dyes<\/strong><\/p>\n

    Pathology laboratories have commercially available tissue labeling systems developed for this purpose.<\/p>\n

    Included in the SpesBio portfolio Cancer Diagnostics, Inc. (CDI) Tissue Marking Dyes<\/strong>, These products are designed for marking different boundaries and surfaces of surgical materials.<\/p>\n

    The availability of different color options helps create a flexible marking system, especially in cases where multiple surgical margins or anatomical surfaces need to be defined separately on the same material.<\/p>\n

    Since the products are offered in different colors and application options, laboratories can evaluate the system that best suits their own macroscopic workflow.<\/p>\n

    Regardless of product selection, the basic principle remains the same: it is important that the colors used are defined by the laboratory, the application method is standardized, and the results are evaluated under the laboratory's own working conditions.<\/p>\n

    Conclusion<\/strong><\/p>\n

    Tissue marking dyes play a small but important role in surgical pathology.<\/p>\n

    A three-dimensional surgical specimen seen during macroscopic examination is transformed into micron-thick sections through histological processing. During this transformation, it is necessary to preserve information about anatomical orientation and surgical margins as much as possible.<\/p>\n

    Tissue labeling dyes help transfer this information from macroscopic examination to microscopic evaluation.<\/p>\n

    A properly implemented and well-documented color coding system can facilitate the identification of different surgical margins, the preservation of material orientation, and the tracking of relevant surfaces during microscopic evaluation.<\/p>\n

    Therefore, as much as the properties of the paint used Correct color selection, controlled application, and in-laboratory standardization.<\/strong> These are also important components of a successful tissue marking process.<\/p>\n

    To inform<\/strong><\/p>\n

    This content has been prepared for general informational purposes, drawing upon scientific literature and reliable technical sources regarding tissue labeling methods in surgical pathology. Application protocols may vary depending on the products used, tissue type, and the laboratory's validated operating procedures.<\/p>

      \n<\/ol>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"

      Patoloji laboratuvarlar\u0131nda bir cerrahi materyalin de\u011ferlendirilmesi yaln\u0131zca dokunun mikroskop alt\u0131nda incelenmesinden ibaret de\u011fildir. \u00d6zellikle t\u00fcm\u00f6r rezeksiyonlar\u0131nda, cerrahi s\u0131n\u0131rlar\u0131n do\u011fru \u015fekilde tan\u0131mlanmas\u0131 ve makroskopik inceleme s\u0131ras\u0131nda belirlenen anatomik y\u00f6nlerin histolojik inceleme boyunca korunmas\u0131 b\u00fcy\u00fck \u00f6nem ta\u015f\u0131r. Bu s\u00fcre\u00e7te kullan\u0131lan temel y\u00f6ntemlerden biri doku i\u015faretleme boyalar\u0131d\u0131r. Doku i\u015faretleme boyalar\u0131; cerrahi olarak \u00e7\u0131kar\u0131lan doku \u00f6rneklerinin belirli y\u00fczeylerini, rezeksiyon s\u0131n\u0131rlar\u0131n\u0131 […]<\/p>\n","protected":false},"author":1,"featured_media":5856,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[294],"tags":[],"class_list":["post-5855","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bilimsel-icerikler"],"_links":{"self":[{"href":"https:\/\/spesbio.com.tr\/en\/wp-json\/wp\/v2\/posts\/5855","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/spesbio.com.tr\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/spesbio.com.tr\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/spesbio.com.tr\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/spesbio.com.tr\/en\/wp-json\/wp\/v2\/comments?post=5855"}],"version-history":[{"count":10,"href":"https:\/\/spesbio.com.tr\/en\/wp-json\/wp\/v2\/posts\/5855\/revisions"}],"predecessor-version":[{"id":5935,"href":"https:\/\/spesbio.com.tr\/en\/wp-json\/wp\/v2\/posts\/5855\/revisions\/5935"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/spesbio.com.tr\/en\/wp-json\/wp\/v2\/media\/5856"}],"wp:attachment":[{"href":"https:\/\/spesbio.com.tr\/en\/wp-json\/wp\/v2\/media?parent=5855"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/spesbio.com.tr\/en\/wp-json\/wp\/v2\/categories?post=5855"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/spesbio.com.tr\/en\/wp-json\/wp\/v2\/tags?post=5855"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}