DescriptionTumour infiltrating lymphocytes in colorectal carcinoma - very high mag.jpg
English: Very high magnification micrograph of tumour infiltrating lymphocytes, abbreviated TILs, in a case of colorectal carcinoma. TILs may also be spelled tumor infiltrating lymphocytes. H&E stain.
When TILs are present the lymphocytes are found between the tumour cells; cells in the stroma surrounding the tumour cells do not count.[1] It should be noted that definitions for TILs vary.
TILs are associated with microsatellite instability (MSI) cancers, as seen in Lynch syndrome.[2]
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{{Information |Description ={{en|1=Very high magnification micrograph of '''tumour infiltrating lymphocytes''', abbreviated '''TILs''', in a case of colorectal carcinoma. TILs may also be spelled ''tumor infi...
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