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Generally, interpretations are subjective, and this is especially true when the staining is weak and focal. In other words, "... your weak [positive] stain might be somebody else’s negative."<ref>URL: [http://bitesizebio.com/articles/immunohistochemistry-getting-the-stain-you-want/ http://bitesizebio.com/articles/immunohistochemistry-getting-the-stain-you-want/]. Accessed on: 1 September 2012.</ref> | Generally, interpretations are subjective, and this is especially true when the staining is weak and focal. In other words, "... your weak [positive] stain might be somebody else’s negative."<ref>URL: [http://bitesizebio.com/articles/immunohistochemistry-getting-the-stain-you-want/ http://bitesizebio.com/articles/immunohistochemistry-getting-the-stain-you-want/]. Accessed on: 1 September 2012.</ref> | ||
The cynical might say it is unwritten rule that: | The cynical might say it is unwritten rule that: "... if the stain is weak and focal it can be anything you want to make it -- positive or negative -- so it fits perfectly with your diagnosis!" | ||
==General (malignant) differential diagnosis== | ==General (malignant) differential diagnosis== |
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