Do Not Be Fooled by Fancy Mutations: Inflammatory Fibroid Polyps Can Harbor Mutations Similar to Those Found in GIST
Goal. Surgeons that remove a typical polyp from the stomach or small intestine should be reluctant to accept a diagnosis of GIST just because there is a mutation in platelet-derived growth factor receptor alfa (PDGFRA). Background. A subtype of gastric and intestinal polyps is denoted as inflammator...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2013-01-01
|
| Series: | Case Reports in Medicine |
| Online Access: | http://dx.doi.org/10.1155/2013/845801 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832562474700767232 |
|---|---|
| author | Bodil Bjerkehagen Kristin Aaberg Sonja E. Steigen |
| author_facet | Bodil Bjerkehagen Kristin Aaberg Sonja E. Steigen |
| author_sort | Bodil Bjerkehagen |
| collection | DOAJ |
| description | Goal. Surgeons that remove a typical polyp from the stomach or small intestine should be reluctant to accept a diagnosis of GIST just because there is a mutation in platelet-derived growth factor receptor alfa (PDGFRA). Background. A subtype of gastric and intestinal polyps is denoted as inflammatory fibroid polyp (IFP). In some of these cases a mutation in PDGFRA is found, leading to the diagnosis of gastrointestinal stromal tumor (GIST). Study. This study includes two patients that had polyps removed from the ileum, and an extended investigation was performed with immunohistochemical staining and mutation analyses. Results. The tumors did not show typical immunohistochemical staining for markers used to diagnose GIST, but the mutation analysis revealed a mutation in PDGFRA exon 12. On the basis of the mutation analysis, both polyps were primarily diagnosed as GISTs, but the diagnosis was later changed to inflammatory fibroid polyp. Conclusion. It is important that both surgeons and pathologists be aware that IFP can harbor a mutation in PDGFRA where further treatment and follow-up is different with the two different diagnoses. A mutation analysis can be misleading when taken out of the context of clinical observations, histological characteristics and immunohistochemical staining. |
| format | Article |
| id | doaj-art-717fe3886c634e65b6647649707641e2 |
| institution | Kabale University |
| issn | 1687-9627 1687-9635 |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Case Reports in Medicine |
| spelling | doaj-art-717fe3886c634e65b6647649707641e22025-02-03T01:22:32ZengWileyCase Reports in Medicine1687-96271687-96352013-01-01201310.1155/2013/845801845801Do Not Be Fooled by Fancy Mutations: Inflammatory Fibroid Polyps Can Harbor Mutations Similar to Those Found in GISTBodil Bjerkehagen0Kristin Aaberg1Sonja E. Steigen2Department of Pathology, Oslo University Hospital, Norwegian Radium Hospital, Pb 4953 Nydalen, 0424 Oslo, NorwayDepartment of Pathology, University Hospital of North Norway, 9038 Tromsø, NorwayDepartment of Pathology, University Hospital of North Norway, 9038 Tromsø, NorwayGoal. Surgeons that remove a typical polyp from the stomach or small intestine should be reluctant to accept a diagnosis of GIST just because there is a mutation in platelet-derived growth factor receptor alfa (PDGFRA). Background. A subtype of gastric and intestinal polyps is denoted as inflammatory fibroid polyp (IFP). In some of these cases a mutation in PDGFRA is found, leading to the diagnosis of gastrointestinal stromal tumor (GIST). Study. This study includes two patients that had polyps removed from the ileum, and an extended investigation was performed with immunohistochemical staining and mutation analyses. Results. The tumors did not show typical immunohistochemical staining for markers used to diagnose GIST, but the mutation analysis revealed a mutation in PDGFRA exon 12. On the basis of the mutation analysis, both polyps were primarily diagnosed as GISTs, but the diagnosis was later changed to inflammatory fibroid polyp. Conclusion. It is important that both surgeons and pathologists be aware that IFP can harbor a mutation in PDGFRA where further treatment and follow-up is different with the two different diagnoses. A mutation analysis can be misleading when taken out of the context of clinical observations, histological characteristics and immunohistochemical staining.http://dx.doi.org/10.1155/2013/845801 |
| spellingShingle | Bodil Bjerkehagen Kristin Aaberg Sonja E. Steigen Do Not Be Fooled by Fancy Mutations: Inflammatory Fibroid Polyps Can Harbor Mutations Similar to Those Found in GIST Case Reports in Medicine |
| title | Do Not Be Fooled by Fancy Mutations: Inflammatory Fibroid Polyps Can Harbor Mutations Similar to Those Found in GIST |
| title_full | Do Not Be Fooled by Fancy Mutations: Inflammatory Fibroid Polyps Can Harbor Mutations Similar to Those Found in GIST |
| title_fullStr | Do Not Be Fooled by Fancy Mutations: Inflammatory Fibroid Polyps Can Harbor Mutations Similar to Those Found in GIST |
| title_full_unstemmed | Do Not Be Fooled by Fancy Mutations: Inflammatory Fibroid Polyps Can Harbor Mutations Similar to Those Found in GIST |
| title_short | Do Not Be Fooled by Fancy Mutations: Inflammatory Fibroid Polyps Can Harbor Mutations Similar to Those Found in GIST |
| title_sort | do not be fooled by fancy mutations inflammatory fibroid polyps can harbor mutations similar to those found in gist |
| url | http://dx.doi.org/10.1155/2013/845801 |
| work_keys_str_mv | AT bodilbjerkehagen donotbefooledbyfancymutationsinflammatoryfibroidpolypscanharbormutationssimilartothosefoundingist AT kristinaaberg donotbefooledbyfancymutationsinflammatoryfibroidpolypscanharbormutationssimilartothosefoundingist AT sonjaesteigen donotbefooledbyfancymutationsinflammatoryfibroidpolypscanharbormutationssimilartothosefoundingist |