Difference between revisions of "Esophagus"

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Esophagus (view source)

Revision as of 19:00, 5 February 2014

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→‎Esophageal adenocarcinoma: split out
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==Esophageal adenocarcinoma==
==Esophageal adenocarcinoma==
*[[AKA]] ''adenocarcinoma of the esophagus''.
*[[AKA]] ''adenocarcinoma of the esophagus''.
 
{{Main|Esophageal adenocarcinoma}}
===General===
*Often a prognosis poor - as diagnosed in a late stage.
*May be difficult to distinguish from adenocarcinoma of the stomach.
**By convention (in the ''[[CAP checklist]]'') gastroesophageal junction carcinomas are staged as esophageal carcinomas.<ref>URL: [http://www.cap.org/apps/docs/committees/cancer/cancer_protocols/2011/Esophagus_11protocol.pdf http://www.cap.org/apps/docs/committees/cancer/cancer_protocols/2011/Esophagus_11protocol.pdf]. Accessed on: 6 April 2012.</ref>
 
====Tx====
*Adenocarcinoma in situ (AIS) - may be treated with endoscopic mucosal resection & follow-up.<ref name=pmid19306943/>
*Surgery - esophagectomy.
 
====Esophagus vs. stomach====
The convention is it's esophageal if both of the following are true:<ref name=Ref_WMSP168>{{Ref WMSP|168}}</ref>
#Epicenter of tumour is in the esophagus.
#Barrett's mucosa is present.
 
===Microscopic===
Features:
*Adenocarcinoma:
**Cell clusters that form glands.
**Nuclear atypia of malignancy:
***Size variation.
***Shape variation.
***Staining variation.
**Mitoses common.
 
=====Images=====
<gallery>
Image:Esophageal_adenocarcinoma_-_very_low_mag.jpg |Esophageal adenocarcinoma - very low mag. (WC)
Image:Esophageal_adenocarcinoma_-_intermed_mag.jpg |Esophageal adenocarcinoma - intermed. mag. (WC)
</gallery>
====Grading====
Graded like other adenocarcinoma:<ref name=Ref_WMSP168>{{Ref WMSP|168}}</ref>
*>95 % of tumour in glandular arrangement = ''well-differentiated''.
*95-50% of tumour in glandular arrangement= ''moderately-differentiated''.
*<50% of tumour in glandular arrangment = ''poorly-differentiated''.
 
====Staging====
Early esophageal adenocarcinoma has its own staging system:<ref>{{Cite journal  | last1 = Pech | first1 = O. | last2 = May | first2 = A. | last3 = Rabenstein | first3 = T. | last4 = Ell | first4 = C. | title = Endoscopic resection of early oesophageal cancer. | journal = Gut | volume = 56 | issue = 11 | pages = 1625-34 | month = Nov | year = 2007 | doi = 10.1136/gut.2006.112110 | PMID = 17938435 | PMC = 2095648 }}</ref><ref>{{Cite journal  | last1 = Thosani | first1 = N. | last2 = Singh | first2 = H. | last3 = Kapadia | first3 = A. | last4 = Ochi | first4 = N. | last5 = Lee | first5 = JH. | last6 = Ajani | first6 = J. | last7 = Swisher | first7 = SG. | last8 = Hofstetter | first8 = WL. | last9 = Guha | first9 = S. | title = Diagnostic accuracy of EUS in differentiating mucosal versus submucosal invasion of superficial esophageal cancers: a systematic review and meta-analysis. | journal = Gastrointest Endosc | volume =  | issue =  | pages =  | month = Nov | year = 2011 | doi = 10.1016/j.gie.2011.09.016 | PMID = 22115605 | URL = http://www.sciencedirect.com/science/article/pii/S0016510711022048 }}</ref>
*M1 = lamina propria.
*M2 = superficial muscularis mucosae.
*M3 = submucosa.
*M4 = muscularis propria.
 
===IHC===
*CK7 +ve.
*CK20 +ve.
 
To rule-out SCC:
*p63 -ve.
*HWMK -ve.


=Weird stuff=
=Weird stuff=
Michael
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