Peutz-Jeghers syndrome pathophysiology: Difference between revisions
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===Microscopic Pathology=== | ===Microscopic Pathology=== | ||
Polyps of Peutz-Jeghers syndrome are usually non-neoplastic [[hamartomas]]<ref name="radiopaedia">Radiopaedia.http://radiopaedia.org/articles/peutz-jeghers-syndrome-2</ref> | Polyps of Peutz-Jeghers syndrome are usually non-neoplastic [[hamartomas]].<ref name="radiopaedia">Radiopaedia.http://radiopaedia.org/articles/peutz-jeghers-syndrome-2</ref> On microscopic histopathological analysis, polyps have the following characteristic findings:<ref name="librepathology">libre Pathology.http://librepathology.org/wiki/index.php/Peutz-Jeghers_syndrome</ref> | ||
*Frond-like polyp with all three components of mucosa: | *Frond-like polyp with all three components of mucosa: | ||
:*Muscosal epithelium (melanotic mucosa, goblet cells) | :*Muscosal epithelium (melanotic mucosa, goblet cells) | ||
Revision as of 14:21, 23 September 2015
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Peutz-Jeghers syndrome Microchapters |
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Peutz-Jeghers syndrome pathophysiology On the Web |
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Mohamad Alkateb, MBBCh [2]
Overview
Peutz-Jeghers syndrome is transmitted in an autosomal dominant pattern.
Pathophysiology
Genetics
- Peutz-Jeghers syndrome is inherited in an autosomal dominant pattern.
- Peutz-Jeghers syndrome is caused by a mutation in STK11 (LKB1) tumor suppressor gene on chromosome 19.[1]
Microscopic Pathology
Polyps of Peutz-Jeghers syndrome are usually non-neoplastic hamartomas.[2] On microscopic histopathological analysis, polyps have the following characteristic findings:[3]
- Frond-like polyp with all three components of mucosa:
- Muscosal epithelium (melanotic mucosa, goblet cells)
- Lamina propria
- Muscularis mucosae
References
- ↑ JBouquot, Jerry E.; Neville, Brad W.; Damm, Douglas D.; Allen, Carl P. (2008).Oral and Maxillofacial Pathology. Philadelphia: Saunders. p.16.11.ISBN1-4160-3435-8.
- ↑ Radiopaedia.http://radiopaedia.org/articles/peutz-jeghers-syndrome-2
- ↑ libre Pathology.http://librepathology.org/wiki/index.php/Peutz-Jeghers_syndrome