Difference between revisions of "Duodenum"

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118 bytes added ,  09:32, 31 May 2012
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===Microscopic===
===Microscopic===
Features:<ref name=pmid15740625>{{Cite journal  | last1 = Wong | first1 = A. | last2 = Miller | first2 = AR. | last3 = Metter | first3 = J. | last4 = Thomas | first4 = CR. | title = Locally advanced duodenal gangliocytic paraganglioma treated with adjuvant radiation therapy: case report and review of the literature. | journal = World J Surg Oncol | volume = 3 | issue = 1 | pages = 15 | month = Mar | year = 2005 | doi = 10.1186/1477-7819-3-15 | PMID = 15740625 }}</ref>
Features - three components:<ref name=pmid15740625>{{Cite journal  | last1 = Wong | first1 = A. | last2 = Miller | first2 = AR. | last3 = Metter | first3 = J. | last4 = Thomas | first4 = CR. | title = Locally advanced duodenal gangliocytic paraganglioma treated with adjuvant radiation therapy: case report and review of the literature. | journal = World J Surg Oncol | volume = 3 | issue = 1 | pages = 15 | month = Mar | year = 2005 | doi = 10.1186/1477-7819-3-15 | PMID = 15740625 }}</ref>
*Ganglion cells - '''key feature'''.
#Ganglion cells = large cells with:
**Round large nucleus.
#*Round large nucleus.
**Prominent nucleolus.
#*Prominent nucleolus.
*Epithelioid cells - classically in nests or cords.
#*Moderate or abundant cytoplasm.
*Spindle cells - [[schwannoma]]-like.
#Epithelioid cells (neuroendocrine component):
**Moderate or abundant cytoplasm.
#*Arranged in nests or cords.
**Nucleus spindle-shaped or ellipsoid.
#*Stippled chromatin.
#Spindle cells ([[Schwannoma|schwannian]] component):
#*#Moderate or abundant cytoplasm.
#*#Nucleus spindle-shaped or ellipsoid.


DDx:<ref name=pmid15740625/>
DDx:<ref name=pmid15740625/>
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