Warning: file_get_contents(https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&id=29275530
&cmd=llinks): Failed to open stream: HTTP request failed! HTTP/1.1 429 Too Many Requests
in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 215
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Warning: imagejpeg(C:\Inetpub\vhosts\kidney.de\httpdocs\phplern\29275530
.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Pituitary
2018 ; 21
(2
): 119-129
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Histopathological classification of non-functioning pituitary neuroendocrine
tumors
#MMPMID29275530
Manojlovic-Gacic E
; Engström BE
; Casar-Borota O
Pituitary
2018[Apr]; 21
(2
): 119-129
PMID29275530
show ga
Non-functioning pituitary neuroendocrine tumors do not cause endocrine symptoms
related to hypersecretion of adenohypophyseal hormones and are clinically
characterized by symptoms due to growing sellar tumor mass. Histopathological
classification of this tumor group has always been challenging due to their
heterogeneity, limited knowledge on their biology, and diverse methodological
problems. We have searched PubMed database for data related to the
histopathological classification of non-functioning pituitary tumors and methods
for its application. Principles of the classification and grading presented in
the recently released 4th edition of the World Health Organization classification
of endocrine tumors have been summarized. Based on the expression of anterior
pituitary hormones and pituitary specific transcription factors, gonadotroph
tumors dominate within the group of clinically non-functioning tumors, followed
by corticotroph type; however, other less common types of the non-functioning
tumors can be identified. Assessment of tumor cell proliferation is important to
identify "high-risk adenomas." A few subtypes of non-functioning tumors belong to
the category of potentially aggressive tumors, independent of the cell
proliferation rate. Here, we present up to date criteria for the classification
of clinically non-functioning pituitary tumors, offer a diagnostic approach for
the routine clinical use, and emphasize a need for inclusion of prognostic and
predictive markers in the classification.