Table 1 Histological and immunohistochemical details of the two cases
Case 1 | Case 2 | |
|---|---|---|
PAS staining of diastase-resistant granules | Tumor cell focal (+) | Tumor cell focal (+) |
Secretion (+) | Secretion (+) | |
Eosinophilic cytoplasm | + | + |
Decapitation secretion | + | + |
GCDFP-15 | + | + |
CD15 | + | + |
CK7 | + | + |
CK20 | − | + |
Alpha-SMA | − | − |
S-100 | − | − |
EMA | + | + |
ER | − | − |
PR | − | − |
HER2 | 2+ | 2+ |
P53 | Focal (+) | Focal (+) |
CEA | − | Focal (+) |