Parasite | Eso | Sto | Cancer | ESD
[À§Àå°ü º´¸®. Pathology of GI tract] - ðû
3. Esophagus
4. Benign diseases of the stomach
5. À§¾ÏÀÇ º´¸® Pathology of gastric cancer
7. Lymphomas
8. Others
10. Clusters of differentiation (CD)
11. Symposiums
12. FAQs
13. References
PDF 12M (¿ì¸®¸» version)
4. Benign diseases of the stomach
Pathology of acute erosive gastritis |
Acute phase Vascular engorgement Lamina propria hemorrhage Superficial necrosis Polymorpholeukocutes in pits and glands Ulcers and erosions Superficial fibrin deposits |
Healing phase Epithelial regeneration with nuclear engorgement Pit elongation Mucus depletion Nuclear mitosis |
Definition of atrophy | Loss of appropriated glands |
Phenotype 1 of atrophic gastritis | Shrinkage or complete disappearance of glandular units, replace by expanded (fibrotic) lamina propria |
Phenotype 2 of atrophic gastritis | Replacement of the native glands by other featuring a new commitment (i.e., intestinal metaplasia and/or pseudopyloric metaplasia = SPEM) |
Intestinal metaplasia | IM may arise in either native mucus-secreting (antral) epithelia or previously antralized oxyntic glands (pseudopyloric metaplasia = SPEM) |
±×³É gland°¡ ¾ø¾îÁö´Â °Í°ú intestinal metaplasia ¶Ç´Â pseudopyloric metaplasia (= SPEM, spasmolytic polypeptide-expressing metaplasia)¸¦ µ¿¹ÝÇÏ´Â Á¾·ù°¡ ÀÖ´Ù´Â ¼³¸í. Antrum¿¡¼ intestinal metaplasia°¡ gland proper¿¡¼ ¹ß»ýÇϱ⺸´Ù´Â mucus-secreting foveolar epithelium¿¡¼ ¹ß»ýÇÏ´Â Çö»ó°ú ±×¸² B°¡ ´Þ¶ó¼ Àǹ®ÀÓ
Type 1Àº mucus dropletÀÌ ¾ø°í brush border°¡ ÀÖ´Â absorptive cellÀÌ ¸¸µé¾îÁö´Â Ãʱâ Çö»óÀÌ°í type 2,3´Â mucus dropletÀÌ ¸¸µé¾îÁö°í brush border°¡ ¾ø´Â non-absorptive cell (= Goblet cell)ÀÌ ¸¸µé¾îÁö´Â Èıâ Çö»óÀÌ´Ù. óÀ½¿¡´Â antral-corpus junction¿¡¼ atrophic, intestinalized mucosa°¡ ³ªÅ¸³ª°í Á¡Â÷ À̺¸´Ù proximal°ú distal¿¡¼µµ °üÂûµÈ´Ù.
5. À§¾ÏÀÇ º´¸® Pathology of gastric cancer
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A standardized pathology report for gastric cancer, 2nd edition (2023) PDF 12M - 2005³â À§¾Ï º´¸® °¡À̵å¶óÀÎ 1ÆÇ
Unusual or uncommon histology of gastric cancer. JGC 2024. ¸Þ¸ð
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Intestinal type gastric cancerÀÇ ¹ß»ý Clin Microbiol Infect 2015
Diffuse type gastric cancerÀÇ ¹ß»ý Biochim Biophys Acta Rev Cancer 2022
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9. Mucin staining - MUC2 (Goblet cell marker), MUC5AC (foveolar marker), MUC6 (antral/pyloric gland marker)
MUC2 Epithelial mucin expressed in intestinal goblet cells and airway epithelium; gene is at 11p15.5
Relatively specific for predicting colorectal origin for Paget disease (Am J Surg Pathol 2001;25:1469)
Gel forming MUC2 mucin may act as barrier to prevent infiltration of malignant cells in breast mucinous / colloid carcinoma
Positive staining: intestinal and airway epithelium; mucinous carcinoma of colon, breast, pancreas, ovary and stomach
Negative staining: stomach, breast ductal and lobular carcinomasMUC3 Upregulated by steroid hormones in vitro
Positive staining: invasive breast carcinoma, gastric carcinoma (associated with poor prognosis)MUC4 Transmembrane or membrane bound mucin that provides a protective layer of mucus
Normally acts as barrier to apical surface of epithelial cells, playing a protective and regulatory role
Positive staining - normal: tracheobronchial mucosa, colon, stomach, cervix and lung; normal salivary glands
Positive staining - disease: pancreatic, colonic, pulmonary and gastric carcinoma; sclerosing epithelioid fibrosarcoma (Am J Surg Pathol 2014;38:1538, Am J Surg Pathol 2012;36:1444)MUC5AC. Also known as MUC5 (GeneCards) Protects epithelium Positive staining - normal: stomach (foveolar epithelium of body and antrum), tracheobronchial mucosa, endometrium (mucinous metaplasia, eosinophilic change / metaplasia (Mod Pathol 2005;18:1243), surface syncytial change, ciliated change in 52%)
Positive staining - disease: extramammary Paget disease but not mammary Paget disease or normal breast tissue (Am J Surg Pathol 2001;25:1469); mucinous carcinoma of ovary, diffuse type gastric carcinoma (83%)
Negative staining: normal breast tissueMUC6 Produces protective glycoprotein coat for gut epithelia
Positive staining - normal: stomach (pyloric glands), gallbladder, colon and endocervix
Positive staining - disease: invasive ductal carcinoma of breast, gastric carcinomas
Negative staining: normal breast tissue
In a cohort of 97 gastric cancers 30% expressed MUC5AC and MUC6 (gastric phenotype), 40% expressed MUC5AC, MUC6 and MUC2 (gastrointestinal phenotype), 10% expressed MUC2 alone (intestinal phenotype) and 20% lacked all markers (null phenotype). (J Surg Oncol. 2008;98:124-129)
10. Clusters of differentiation
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