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Difference between revisions of "Colon"
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*Melanin (from melanocytes) - rare in colon (may be demonstrated with a ''Fontana-Masson stain''<ref>URL: [http://education.vetmed.vt.edu/curriculum/VM8054/labs/Lab2/Examples/exfontana.htm http://education.vetmed.vt.edu/curriculum/VM8054/labs/Lab2/Examples/exfontana.htm]. Accessed on: 5 May 2010.</ref> -- though not so useful in the GI tract). | *Melanin (from melanocytes) - rare in colon (may be demonstrated with a ''Fontana-Masson stain''<ref>URL: [http://education.vetmed.vt.edu/curriculum/VM8054/labs/Lab2/Examples/exfontana.htm http://education.vetmed.vt.edu/curriculum/VM8054/labs/Lab2/Examples/exfontana.htm]. Accessed on: 5 May 2010.</ref> -- though not so useful in the GI tract). | ||
*Foriegn material (e.g. tattoo pigment) - not seen in GI tract. | *Foriegn material (e.g. tattoo pigment) - not seen in GI tract. | ||
Images: | |||
*[http://commons.wikimedia.org/wiki/File:Melanosis_coli_high_mag.jpg Melanosis coli - high mag. (WC)]. | |||
*[http://commons.wikimedia.org/wiki/File:Melanosis_coli_low_mag.jpg Melanosis coli - low mag. (WC)]. | |||
==Microscopic colitis== | ==Microscopic colitis== | ||