Difference between revisions of "Papillary thyroid carcinoma"

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*Circumscribed or even encapsulated neoplasm.
*Circumscribed or even encapsulated neoplasm.
*Morules - interspersed balls of squamoid cells
*Morules - interspersed balls of squamoid cells
**no keritinization or intercellular bridges.
**No keritinization or intercellular bridges.
**Homogenous, lightly eosinophilic glassy nuclei.
**Homogenous, lightly eosinophilic glassy nuclei (biotin accumulation).
*Follicles
*Follicles
**Cribriform, papillary, trabecular and solid patterns.
**Cribriform, papillary, trabecular and solid patterns.
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IHC:
IHC:
CDX2 - Highlights the morules (CDX2 is positive in the biotin rich nuclei associated with morule formation in a variety of situations)<ref>{{Cite journal  | last1 = Wani | first1 = Y. | last2 = Notohara | first2 = K. | last3 = Nakatani | first3 = Y. | last4 = Matsuzaki | first4 = A. | title = Aberrant nuclear Cdx2 expression in morule-forming tumours in different organs, accompanied by cytoplasmic reactivity. | journal = Histopathology | volume = 55 | issue = 4 | pages = 465-8 | month = Oct | year = 2009 | doi = 10.1111/j.1365-2559.2009.03382.x | PMID = 19817898 }}</ref>
CDX2 - Highlights the morules (CDX2 is positive in the biotin rich nuclei associated with morule formation in a variety of situations)<ref>{{Cite journal  | last1 = Wani | first1 = Y. | last2 = Notohara | first2 = K. | last3 = Nakatani | first3 = Y. | last4 = Matsuzaki | first4 = A. | title = Aberrant nuclear Cdx2 expression in morule-forming tumours in different organs, accompanied by cytoplasmic reactivity. | journal = Histopathology | volume = 55 | issue = 4 | pages = 465-8 | month = Oct | year = 2009 | doi = 10.1111/j.1365-2559.2009.03382.x | PMID = 19817898 }}</ref>
CD10 - Highlights the morules
Beta-catenin - nuclear and cytoplasmic - all tumour cells.
TTF-1 - positive


DDX:
DDX:
653

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