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	'''Poorly differentiated thyroid carcinoma''', abbreviated '''PDTC''', is a distinct type of thyroid carcinoma recognized in the 2004 WHO classification of thyroid tumours.<ref name=pmid21969055>{{Cite journal \| last1 = Tallini \| first1 = G. \| title = Poorly differentiated thyroid carcinoma. Are we there yet? \| journal = Endocr Pathol \| volume = 22 \| issue = 4 \| pages = 190-4 \| month = Dec \| year = 2011 \| doi = 10.1007/s12022-011-9176-5 \| PMID = 21969055 }}</ref><ref name=pmid19960273>{{Cite journal \| last1 = Volante \| first1 = M. \| last2 = Papotti \| first2 = M. \| title = Poorly differentiated thyroid carcinoma: 5 years after the 2004 WHO classification of endocrine tumours. \| journal = Endocr Pathol \| volume = 21 \| issue = 1 \| pages = 1-6 \| month = Mar \| year = 2010 \| doi = 10.1007/s12022-009-9100-4 \| PMID = 19960273 }}</ref>		'''Poorly differentiated thyroid carcinoma''', abbreviated '''PDTC''', is a distinct type of thyroid carcinoma that is recognized in the 2004 WHO classification of thyroid tumours.<ref name=pmid21969055>{{Cite journal \| last1 = Tallini \| first1 = G. \| title = Poorly differentiated thyroid carcinoma. Are we there yet? \| journal = Endocr Pathol \| volume = 22 \| issue = 4 \| pages = 190-4 \| month = Dec \| year = 2011 \| doi = 10.1007/s12022-011-9176-5 \| PMID = 21969055 }}</ref><ref name=pmid19960273>{{Cite journal \| last1 = Volante \| first1 = M. \| last2 = Papotti \| first2 = M. \| title = Poorly differentiated thyroid carcinoma: 5 years after the 2004 WHO classification of endocrine tumours. \| journal = Endocr Pathol \| volume = 21 \| issue = 1 \| pages = 1-6 \| month = Mar \| year = 2010 \| doi = 10.1007/s12022-009-9100-4 \| PMID = 19960273 }}</ref> It does not refer to high grade thyroid tumours.<ref name=pmid21969055/>

	~~It does not refer to high grade~~ thyroid ~~tumour~~.<ref name=~~pmid21969055~~/>		==General==
			*Prognosis between that of [[papillary thyroid carcinoma]] and [[anaplastic thyroid carcinoma]].<ref name=pmid20562850>{{Cite journal \| last1 = Asioli \| first1 = S. \| last2 = Erickson \| first2 = LA. \| last3 = Righi \| first3 = A. \| last4 = Jin \| first4 = L. \| last5 = Volante \| first5 = M. \| last6 = Jenkins \| first6 = S. \| last7 = Papotti \| first7 = M. \| last8 = Bussolati \| first8 = G. \| last9 = Lloyd \| first9 = RV. \| title = Poorly differentiated carcinoma of the thyroid: validation of the Turin proposal and analysis of IMP3 expression. \| journal = Mod Pathol \| volume = 23 \| issue = 9 \| pages = 1269-78 \| month = Sep \| year = 2010 \| doi = 10.1038/modpathol.2010.117 \| PMID = 20562850 }}</ref>

			==Microscopic==
			Required features - so called ''Turin criteria'':<ref name=pmid17667551>{{Cite journal \| last1 = Volante \| first1 = M. \| last2 = Collini \| first2 = P. \| last3 = Nikiforov \| first3 = YE. \| last4 = Sakamoto \| first4 = A. \| last5 = Kakudo \| first5 = K. \| last6 = Katoh \| first6 = R. \| last7 = Lloyd \| first7 = RV. \| last8 = LiVolsi \| first8 = VA. \| last9 = Papotti \| first9 = M. \| title = Poorly differentiated thyroid carcinoma: the Turin proposal for the use of uniform diagnostic criteria and an algorithmic diagnostic approach. \| journal = Am J Surg Pathol \| volume = 31 \| issue = 8 \| pages = 1256-64 \| month = Aug \| year = 2007 \| doi = 10.1097/PAS.0b013e3180309e6a \| PMID = 17667551 }}</ref>
			# Solid, trabecular or insular pattern of growth.
			# Absence of nuclear features for (conventional) [[papillary thyroid carcinoma]].
			# One of the following:
			## Convoluted nuclei.
			## >= 3 mitoses/10 [[HPF]].
			## Tumour necrosis.

	==See also==		==See also==
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	[[Category:Diagnosis]]		[[Category:Diagnosis]]
			[[Category:Thyroid gland]]

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'''Poorly differentiated thyroid carcinoma''', abbreviated '''PDTC''', is a distinct type of thyroid carcinoma recognized in the 2004 WHO classification of thyroid tumours.<ref name=pmid21969055>{{Cite journal | last1 = Tallini | first1 = G. | title = Poorly differentiated thyroid carcinoma. Are we there yet? | journal = Endocr Pathol | volume = 22 | issue = 4 | pages = 190-4 | month = Dec | year = 2011 | doi = 10.1007/s12022-011-9176-5 | PMID = 21969055 }}</ref><ref name=pmid19960273>{{Cite journal | last1 = Volante | first1 = M. | last2 = Papotti | first2 = M. | title = Poorly differentiated thyroid carcinoma: 5 years after the 2004 WHO classification of endocrine tumours. | journal = Endocr Pathol | volume = 21 | issue = 1 | pages = 1-6 | month = Mar | year = 2010 | doi = 10.1007/s12022-009-9100-4 | PMID = 19960273 }}</ref>

It does not refer to high grade thyroid tumour.<ref name=pmid21969055/>

==See also==
*[[Thyroid gland]].

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

[[Category:Diagnosis]]

Poorly differentiated thyroid carcinoma - Revision history

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