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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 J+Gastrointest+Oncol
2017 ; 8
(5
): E73-E79
Nephropedia Template TP
gab.com Text
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English Wikipedia
Pancreatic non-functioning neuroendocrine tumor: a new entity genetically related
to Lynch syndrome
#MMPMID29184699
Serracant Barrera A
; Serra Pla S
; Blázquez Maña CM
; Salas RC
; García Monforte N
; Bejarano González N
; Romaguera Monzonis A
; Andreu Navarro FJ
; Bella Cueto MR
; Borobia FG
J Gastrointest Oncol
2017[Oct]; 8
(5
): E73-E79
PMID29184699
show ga
Some pancreatic neuroendocrine tumors (P-NETs) are associated with hereditary
syndromes. An association between Lynch syndrome (LS) and P-NETs has been
suggested, however it has not been confirmed to date. We describe the first case
associating LS and P-NETs. Here we report a 65-year-old woman who in the past 20
years presented two colorectal carcinomas (CRC) endometrial carcinoma (EC),
infiltrating ductal breast carcinoma, small intestine adenocarcinoma, two
non-functioning P-NETs and sebomatricoma. With the exception of one P-NET, all
these conditions were associated with LS, as confirmed by immunohistochemistry
(IHC) and polymerase chain reaction (PCR). LS is caused by a mutation of a
mismatch repair (MMR) gene which leads to a loss of expression of its protein.
CRC is the most common tumor, followed by EC. Pancreatic tumors have also been
associated with LS. Diagnosis of LS is based on clinical criteria (Amsterdam II
and Bethesda) and genetic study (MMR gene mutation). The association between LS
and our patient's tumors was confirmed by IHC (loss of expression of proteins
MLH1 and its dimer PMS2) and the detection of microsatellite instability (MSI)
using PCR.