Colon tumor - Inflammatory myoglandular polyp of colon

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Colon tumor

Polyps

Inflammatory myoglandular polyp of colon

Reviewers: Jela Bandovic, M.D. (see Reviewers page)
Revised: 23 May 2012, last major update May 2012
Copyright: (c) 2003-2012, PathologyOutlines.com, Inc.

General
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● Mean age 53 years
● Distal colon; rarely in ileum where it may cause intussusception
● Associated with mucous diarrhea, tenesmus and hematochezia

Case reports
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● 80 year old man with inflammatory myoglandular polyp (Turk J Gastroenterol 2004;15:117)
● With rectal bleeding (Pathol Res Pract 2003;199:837)

Gross description
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● Solitary, pedunculated, red with smooth surface (Endoscopy 2003;35:363)

Micro description
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● Inflammatory granulation tissue in lamina propria, branching and dilated glands arising within proliferating smooth muscle (resembling Peutz-Jegher polyp)

Micro images
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Inflammatory granulation tissue and prominent smooth muscle

Differential diagnosis
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● Inflammatory polyp (no abundant smooth muscle)
● Peutz-Jegher polyp (no prominent inflammation)

Additional references
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● Am J Surg Pathol 1992;16:772

End of Colon tumor > Polyps > Inflammatory myoglandular polyp of colon

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