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Jensflorian (talk | contribs) (→Pituitary neuroendocrine tumor (PitNET): Update on PitNET) |
Jensflorian (talk | contribs) (→Pituitary carcinoma: Update) |
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*Basophilic cells (corticotrophs). | *Basophilic cells (corticotrophs). | ||
*Eosinophilic cells(somatotrophs). | *Eosinophilic cells(somatotrophs). | ||
*Extensive fibrosis often seen in TSH-producing tumors. | |||
Notes: | Notes: | ||
*Smears very well.<ref>MUN. 24 November 2010.</ref> | *Smears very well.<ref>MUN. 24 November 2010.</ref> | ||
====Images==== | ====Images==== | ||
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*Sparsely granulated somatotroph adenomas are more invasive than other variants and respond less to medical treatment. <ref>{{Cite journal | last1 = Kato | first1 = M. | last2 = Inoshita | first2 = N. | last3 = Sugiyama | first3 = T. | last4 = Tani | first4 = Y. | last5 = Shichiri | first5 = M. | last6 = Sano | first6 = T. | last7 = Yamada | first7 = S. | last8 = Hirata | first8 = Y. | title = Differential expression of genes related to drug responsiveness between sparsely and densely granulated somatotroph adenomas. | journal = Endocr J | volume = 59 | issue = 3 | pages = 221-8 | month = | year = 2012 | doi = | PMID = 22200580 }}</ref> | *Sparsely granulated somatotroph adenomas are more invasive than other variants and respond less to medical treatment. <ref>{{Cite journal | last1 = Kato | first1 = M. | last2 = Inoshita | first2 = N. | last3 = Sugiyama | first3 = T. | last4 = Tani | first4 = Y. | last5 = Shichiri | first5 = M. | last6 = Sano | first6 = T. | last7 = Yamada | first7 = S. | last8 = Hirata | first8 = Y. | title = Differential expression of genes related to drug responsiveness between sparsely and densely granulated somatotroph adenomas. | journal = Endocr J | volume = 59 | issue = 3 | pages = 221-8 | month = | year = 2012 | doi = | PMID = 22200580 }}</ref> | ||
* Lactotroph adenomas in men may show aggressive clinical behavior. <ref>{{Cite journal | last1 = Delgrange | first1 = E. | last2 = Vasiljevic | first2 = A. | last3 = Wierinckx | first3 = A. | last4 = François | first4 = P. | last5 = Jouanneau | first5 = E. | last6 = Raverot | first6 = G. | last7 = Trouillas | first7 = J. | title = Expression of estrogen receptor alpha is associated with prolactin pituitary tumor prognosis and supports the sex-related difference in tumor growth. | journal = Eur J Endocrinol | volume = 172 | issue = 6 | pages = 791-801 | month = Jun | year = 2015 | doi = 10.1530/EJE-14-0990 | PMID = 25792376 }}</ref> | * Lactotroph adenomas in men may show aggressive clinical behavior. <ref>{{Cite journal | last1 = Delgrange | first1 = E. | last2 = Vasiljevic | first2 = A. | last3 = Wierinckx | first3 = A. | last4 = François | first4 = P. | last5 = Jouanneau | first5 = E. | last6 = Raverot | first6 = G. | last7 = Trouillas | first7 = J. | title = Expression of estrogen receptor alpha is associated with prolactin pituitary tumor prognosis and supports the sex-related difference in tumor growth. | journal = Eur J Endocrinol | volume = 172 | issue = 6 | pages = 791-801 | month = Jun | year = 2015 | doi = 10.1530/EJE-14-0990 | PMID = 25792376 }}</ref> | ||
* | *Immature PIT-1 lineage tumors may show aggresive growth. <ref> {{Cite journal | last1 = Mete | first1 = O. | last2 = Gomez-Hernandez | first2 = K. | last3 = Kucharczyk | first3 = W. | last4 = Ridout | first4 = R. | last5 = Zadeh | first5 = G. | last6 = Gentili | first6 = F. | last7 = Ezzat | first7 = S. | last8 = Asa | first8 = SL. | title = Silent subtype 3 pituitary adenomas are not always silent and represent poorly differentiated monomorphous plurihormonal Pit-1 lineage adenomas. | journal = Mod Pathol | volume = 29 | issue = 2 | pages = 131-42 | month = Feb | year = 2016 | doi = 10.1038/modpathol.2015.151 | PMID = 26743473 }}</ref> | ||
===Molecular=== | |||
*GNAS mutations frequently in densely granulated somatotroph tumors. | |||
==Pituitary blastoma== | ==Pituitary blastoma== | ||
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==Pituitary carcinoma== | ==Pituitary carcinoma== | ||
* | * Depreceated in the WHO2022 classification. | ||
* It is acknowledged that PitNETs can be invasive or spread to other sites. | |||
* | |||
==Rathke cleft cyst== | ==Rathke cleft cyst== |