Table 1 Immunohistochemical findings obtained from the gangliocytic paraganglioma and the neuroendocrine tumor G1
GP in pancreatic head | NET G1 in pancreatic tail | |||
|---|---|---|---|---|
E | G | S | ||
Chromogranin A | + | + | − | + |
Synaptophysin | + | + | − | + |
S-100 protein | − | − | + | − |
Neurofilament | − | + | + | ND |
Pancytokeratin | + | + | − | ND |
SSTR1 | − | − | − | ND |
SSTR2A | + | + | − | ND |
SSTR3 | − | − | − | ND |
SSTR5 | − | − | − | ND |
Insulin | − | − | − | − |
Glucagon | − | − | − | + |
PP | − | − | − | − |
Serotonin | − | − | − | ND |
Somatostatin | + | + | − | − |
Tyrosine hydroxylase | − | − | − | ND |
Dopamine β-hydroxylase | − | − | − | ND |
Dopa decarboxylase | − | − | − | ND |
Phenylethanolamine N-methyltransferase | − | + | − | ND |
PgR | + | + | − | + |