Parachordoma - Revision history

Michael: fix

2013-12-30T03:30:25Z

fix

← Older revision		Revision as of 03:30, 30 December 2013
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	==Gross==		==Gross==
	Features:<ref name=pmid10809219>		Features:<ref name=pmid10809219/>
	*Deep soft tissue lesion.		*Deep soft tissue lesion.
	*Firm.		*Firm.

Michael: more

2013-12-30T03:29:28Z

← Older revision		Revision as of 03:29, 30 December 2013
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	==General==		==General==
	*Super rare - only approximately 30 cases reported.<ref name=pmid10478665/>		*Super rare - only approximately 30 cases reported.<ref name=pmid10478665/>
			*Slow growing.<ref name=pmid10809219/>

			==Gross==
			Features:<ref name=pmid10809219>
			*Deep soft tissue lesion.
			*Firm.
			*Well-circumscribed.
			*Most often thigh or arm.<ref name=pmid10478665/>

	==Microscopic==		==Microscopic==

Michael at 03:24, 30 December 2013

2013-12-30T03:24:19Z

← Older revision		Revision as of 03:24, 30 December 2013
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	'''Parachordoma''' is a very rare paraspinal tumour that is similar to [[chordoma]].<ref name=pmid10809219>{{cite journal \|author=Fisher C \|title=Parachordoma exists--but what is it? \|journal=Adv Anat Pathol \|volume=7 \|issue=3 \|pages=141–8 \|year=2000 \|month=May \|pmid=10809219 \|doi= \|url=}}</ref>		'''Parachordoma''' is a very rare paraspinal tumour that is similar to [[chordoma]].<ref name=pmid10809219>{{cite journal \|author=Fisher C \|title=Parachordoma exists--but what is it? \|journal=Adv Anat Pathol \|volume=7 \|issue=3 \|pages=141–8 \|year=2000 \|month=May \|pmid=10809219 \|doi= \|url=}}</ref>

			==General==
			*Super rare - only approximately 30 cases reported.<ref name=pmid10478665/>

			==Microscopic==
			Features:<ref name=pmid10478665/>
			*Multivacuolated cells (physaliferous cell-like) - '''key feature'''.
			**May be rare.
			*"Large" rounded eosinophilic cells - '''important'''.
			*Variable matrix:
			**Myxoid.
			**Dense appearing hyaline - [[cartilage]]-like.
			*Small cells (spindled and rounded) - common.

			DDx:
			*[[Chordoma]].
			*[[Extraskeletal myxoid chondrosarcoma]].

			==Stains==
			*Alcian blue +ve (matrix).<ref name=pmid10478665/>

	==IHC==		==IHC==
	<ref name=pmid10478665>{{Cite journal \| last1 = Folpe\| first1 = AL.\| last2 = Agoff\| first2 = SN.\| last3 = Willis\| first3 = J.\| last4 = Weiss\| first4 = SW.\| title = Parachordoma is immunohistochemically and cytogenetically distinct from axial chordoma and extraskeletal myxoid chondrosarcoma.\| journal = Am J Surg Pathol\| volume = 23\| issue = 9\| pages = 1059-67\| month = Sep\| year = 1999\| doi = \| PMID = 10478665 }}</ref>		Features:<ref name=pmid10478665>{{Cite journal \| last1 = Folpe\| first1 = AL.\| last2 = Agoff\| first2 = SN.\| last3 = Willis\| first3 = J.\| last4 = Weiss\| first4 = SW.\| title = Parachordoma is immunohistochemically and cytogenetically distinct from axial chordoma and extraskeletal myxoid chondrosarcoma.\| journal = Am J Surg Pathol\| volume = 23\| issue = 9\| pages = 1059-67\| month = Sep\| year = 1999\| doi = \| PMID = 10478665 }}</ref>
			*CK 8/18 +ve.
			*EMA +ve.
			*S-100 +ve.
			*Vimentin +ve.

			Note:
			*Other keratins negative.

			==See also==
			*[[Chordoma]].

	==References==		==References==

Michael: create

2013-12-30T03:15:47Z

create

New page

'''Parachordoma''' is a very rare paraspinal tumour that is similar to [[chordoma]].<ref name=pmid10809219>{{cite journal |author=Fisher C |title=Parachordoma exists--but what is it? |journal=Adv Anat Pathol |volume=7 |issue=3 |pages=141–8 |year=2000 |month=May |pmid=10809219 |doi= |url=}}</ref>

==IHC==
<ref name=pmid10478665>{{Cite journal | last1 = Folpe| first1 = AL.| last2 = Agoff| first2 = SN.| last3 = Willis| first3 = J.| last4 = Weiss| first4 = SW.| title = Parachordoma is immunohistochemically and cytogenetically distinct from axial chordoma and extraskeletal myxoid chondrosarcoma.| journal = Am J Surg Pathol| volume = 23| issue = 9| pages = 1059-67| month = Sep| year = 1999| doi = | PMID = 10478665 }}</ref>

==References==
{{Reflist|2}}

[[Category:Neuropathology]]