Difference between revisions of "Esophagus"

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Esophagus (view source)

Revision as of 00:46, 3 April 2014

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→‎Columnar dysplasia of the esophagus: split out
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*[[AKA]] ''dysplasia in the columnar-lined esophagus''.<ref>{{Cite journal  | last1 = Levine | first1 = DS. | title = Management of dysplasia in the columnar-lined esophagus. | journal = Gastroenterol Clin North Am | volume = 26 | issue = 3 | pages = 613-34 | month = Sep | year = 1997 | doi =  | PMID = 9309409 }}</ref>
*[[AKA]] ''dysplasia in the columnar-lined esophagus''.<ref>{{Cite journal  | last1 = Levine | first1 = DS. | title = Management of dysplasia in the columnar-lined esophagus. | journal = Gastroenterol Clin North Am | volume = 26 | issue = 3 | pages = 613-34 | month = Sep | year = 1997 | doi =  | PMID = 9309409 }}</ref>
* [[AKA]] ''columnar epithelial dysplasia''.<ref name=pmid3825997>{{Cite journal  | last1 = Hamilton | first1 = SR. | last2 = Smith | first2 = RR. | title = The relationship between columnar epithelial dysplasia and invasive adenocarcinoma arising in Barrett's esophagus. | journal = Am J Clin Pathol | volume = 87 | issue = 3 | pages = 301-12 | month = Mar | year = 1987 | doi =  | PMID = 3825997 }}</ref>
* [[AKA]] ''columnar epithelial dysplasia''.<ref name=pmid3825997>{{Cite journal  | last1 = Hamilton | first1 = SR. | last2 = Smith | first2 = RR. | title = The relationship between columnar epithelial dysplasia and invasive adenocarcinoma arising in Barrett's esophagus. | journal = Am J Clin Pathol | volume = 87 | issue = 3 | pages = 301-12 | month = Mar | year = 1987 | doi =  | PMID = 3825997 }}</ref>
 
{{Main|Columnar dysplasia of the esophagus}}
===General===
*Arises in the setting of ''[[Barrett esophagus]]''.
 
====Classification====
#Indefinite for dysplasia.
#*[[Diagnosis]] used in the context of uncertainty (like ''[[gynecologic cytopathology|ASCUS]]'' and ''[[prostate gland|ASAP]]''); the classic reason for its use is: the surface (epithelium) cannot be seen (which precludes assessment of maturation); may be used in the context of inflammation.
#Low grade dysplasia.
#High grade dysplasia.
 
====Management====
Low grade dysplasia & indefinite for dysplasia:
*Follow-up.
 
High grade dysplasia:
*Endoscopic mucosal resection.<ref name=pmid19306943>{{cite journal |author=Sampliner RE |title=Endoscopic Therapy for Barrett's Esophagus |journal=Clin. Gastroenterol. Hepatol. |volume= |issue= |pages= |year=2009 |month=March |pmid=19306943 |doi=10.1016/j.cgh.2009.03.011 |url=}}</ref>
*Surgical resection (esophagectomy).
 
===Microscopic===
Features to assess:<ref name=Ref_GLP46>{{Ref GLP|46}}</ref>
# Lack of surface maturation - very common, occasionally absent.<ref name=pmid16625087>{{Cite journal  | last1 = Lomo | first1 = LC. | last2 = Blount | first2 = PL. | last3 = Sanchez | first3 = CA. | last4 = Li | first4 = X. | last5 = Galipeau | first5 = PC. | last6 = Cowan | first6 = DS. | last7 = Ayub | first7 = K. | last8 = Rabinovitch | first8 = PS. | last9 = Reid | first9 = BJ. | title = Crypt dysplasia with surface maturation: a clinical, pathologic, and molecular study of a Barrett's esophagus cohort. | journal = Am J Surg Pathol | volume = 30 | issue = 4 | pages = 423-35 | month = Apr | year = 2006 | doi =  | PMID = 16625087 }}</ref>
#*Lack of lighter staining at surface.
#*Nuclear crowding at surface.
#*Nuclei at the surface not smaller.
# Architecture - esp. at low power.
#* Glands not round.
#** Low-grade feature: gland budding.
#** High-grade features: cribriforming, cystic dilation, necrotic debris.
#* Gland density:
#** Increased & round - think low-grade dysplasia.
#** Increased & irregular - think high-grade dysplasia.
# Cytology, esp. at high magnification.
#* Nuclear abnormalities in: size, staining, shape.
#* Loss of "nuclear polarity" = high-grade feature
#** Loss of palisaded appearance, rounding-up of nuclei.
# Inflammation, erosions & ulceration.
#* Marked inflammation should prompt consideration of knocking down the diagnosis one step, i.e. low-grade becomes indefinite ''or'' high-grade becomes low-grade.
 
Negatives:
#No desmoplasia.
#*Stromal fibrotic reaction to the tumour.
#**Desmoplasia is rare in the superficial esophagus.<ref name=Ref_GLP49>{{Ref GLP|49}}</ref>
#No single cells.
#No extensive back-to-back glands.
 
Notes:
*Changes similar to those see in colorectal tubular adenomas; however, what would be low-grade dysplasia in the rectum is high-grade dysplasia in the esophagus.
*Presence of goblet cells suggests it is not dysplasia.<ref>GAG. January 2009.</ref>
*Desmoplasia present = invasive adenocarcinoma.<ref name=Ref_GLP54>{{Ref GLP|54}}</ref>
*Some literature suggests community pathologists should ''not'' make this call, i.e. it should be diagnosed by an expert.<ref name=pmid10385717>{{Cite journal  | last1 = Alikhan | first1 = M. | last2 = Rex | first2 = D. | last3 = Khan | first3 = A. | last4 = Rahmani | first4 = E. | last5 = Cummings | first5 = O. | last6 = Ulbright | first6 = TM. | title = Variable pathologic interpretation of columnar lined esophagus by general pathologists in community practice. | journal = Gastrointest Endosc | volume = 50 | issue = 1 | pages = 23-6 | month = Jul | year = 1999 | doi =  | PMID = 10385717 }}</ref>
 
DDx:
*[[Intestinal metaplasia of the esophagus]].
*[[Esophageal adenocarcinoma]].
 
====Images====
No dysplasia - only intestinal metaplasia:
*[http://www.nature.com/nrgastro/journal/v6/n8/fig_tab/nrgastro.2009.103_F4.html Intestinal metaplasia (nature.com)].
Indefinite for columnar dysplasia:
*[http://www.nature.com/nrgastro/journal/v6/n8/fig_tab/nrgastro.2009.103_F8.html Indefinite for columnar dysplasia (nature.com)].
*[http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1861756/figure/fig6/ Indefinite for columnar dysplasia (nih.gov)].<ref name=pmid17021130/>
Low-grade columnar dysplasia:
*[http://www.nature.com/nrgastro/journal/v6/n8/fig_tab/nrgastro.2009.103_F5.html Low-grade columnar dysplasia (nature.com)].<ref name=pmid19581906>{{Cite journal  | last1 = Odze | first1 = RD. | title = Barrett esophagus: histology and pathology for the clinician. | journal = Nat Rev Gastroenterol Hepatol | volume = 6 | issue = 8 | pages = 478-90 | month = Aug | year = 2009 | doi = 10.1038/nrgastro.2009.103 | PMID = 19581906 }}</ref>
*[http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1861756/figure/fig2/ Low-grade columnar dysplasia (nih.gov)].<ref name=pmid17021130>{{Cite journal  | last1 = Odze | first1 = RD. | title = Diagnosis and grading of dysplasia in Barrett's oesophagus. | journal = J Clin Pathol | volume = 59 | issue = 10 | pages = 1029-38 | month = Oct | year = 2006 | doi = 10.1136/jcp.2005.035337 | PMID = 17021130 }}</ref>
High-grade columnar dysplasia:
*[http://www.nature.com/nrgastro/journal/v6/n8/fig_tab/nrgastro.2009.103_F6.html High-grade columnar dysplasia (nature.com)].<ref name=pmid19581906/>
*[http://www.nature.com/ajg/journal/v104/n10/fig_tab/ajg2009390f3.html High-grade columnar dysplasia (nature.com)].<ref name=pmid19623166>{{Cite journal  | last1 = Riddell | first1 = RH. | last2 = Odze | first2 = RD. | title = Definition of Barrett's esophagus: time for a rethink--is intestinal metaplasia dead? | journal = Am J Gastroenterol | volume = 104 | issue = 10 | pages = 2588-94 | month = Oct | year = 2009 | doi = 10.1038/ajg.2009.390 | PMID = 19623166 }}</ref>
*[http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1861756/figure/fig3/ High-grade columnar dysplasia (nih.gov)].<ref name=pmid17021130/>
 
===Sign out===
<pre>
ESOPHAGUS, DISTAL, BIOPSY:
- LOW-GRADE COLUMNAR EPITHELIAL DYSPLASIA, SEE COMMENT.
- COLUMNAR EPITHELIUM WITH GOBLET CELL METAPLASIA.
- REACTIVE SQUAMOUS EPITHELIUM.
 
COMMENT:
This was reviewed with Dr. X and they agree with the diagnosis.
</pre>
 
====Alternate====
<pre>
ESOPHAGUS, 30 CM, BIOPSY:
- LOW-GRADE COLUMNAR DYSPLASIA WITH INTESTINAL METAPLASIA AND MILD CHRONIC
  INFLAMMATION.
- NEGATIVE FOR MALIGNANCY.
</pre>


==Squamous dysplasia of the esophagus==
==Squamous dysplasia of the esophagus==
Michael
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