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Difference between revisions of "Stomach"
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→Inflammatory fibroid polyp
(→Microscopic: lymphocytic gastritis) |
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| Line 465: | Line 465: | ||
*Benign. | *Benign. | ||
*Through-out GI tract. | *Through-out GI tract. | ||
*Can be thought of as granulation tissue-like.<ref name=Ref_DCHH138/> | |||
===Microscopic=== | ===Microscopic=== | ||
Features:<ref name=pmid20393746>{{Cite journal | last1 = Daum | first1 = O. | last2 = Hatlova | first2 = J. | last3 = Mandys | first3 = V. | last4 = Grossmann | first4 = P. | last5 = Mukensnabl | first5 = P. | last6 = Benes | first6 = Z. | last7 = Michal | first7 = M. | title = Comparison of morphological, immunohistochemical, and molecular genetic features of inflammatory fibroid polyps (Vanek's tumors). | journal = Virchows Arch | volume = 456 | issue = 5 | pages = 491-7 | month = May | year = 2010 | doi = 10.1007/s00428-010-0914-8 | PMID = 20393746 }}</ref> | Features:<ref name=pmid20393746>{{Cite journal | last1 = Daum | first1 = O. | last2 = Hatlova | first2 = J. | last3 = Mandys | first3 = V. | last4 = Grossmann | first4 = P. | last5 = Mukensnabl | first5 = P. | last6 = Benes | first6 = Z. | last7 = Michal | first7 = M. | title = Comparison of morphological, immunohistochemical, and molecular genetic features of inflammatory fibroid polyps (Vanek's tumors). | journal = Virchows Arch | volume = 456 | issue = 5 | pages = 491-7 | month = May | year = 2010 | doi = 10.1007/s00428-010-0914-8 | PMID = 20393746 }}</ref> | ||
*Proliferating spindle cells (fibroid) - '''key feature'''. | *Proliferating spindle cells (fibroid) - '''key feature'''. | ||
* | *Perivascular hypocellular zones.<ref name=Ref_DCHH138>{{Ref DCHH|138}}</ref> | ||
*Inflammation: | *Inflammation: | ||
**Eosinophils - often prominent. | **Eosinophils - often prominent. | ||
*+/-Leiomyoma/schwannoma-like areas - with nuclear palisading.<ref name=Ref_DCHH138>{{Ref DCHH|138}}</ref> | |||
DDx: | |||
*[[Inflammatory myofibroblastic tumour]]. | |||
===IHC=== | ===IHC=== | ||
| Line 477: | Line 481: | ||
*CD34 +ve. | *CD34 +ve. | ||
**There is a CD34 -ve variant. | **There is a CD34 -ve variant. | ||
*CD117 -ve. | |||
==Hyperplastic polyp== | ==Hyperplastic polyp== | ||