Esophageal Submucosal Gland Duct Adenoma
Supplemental Studies
Immunohistology
| Basal Cells | Luminal Cells | |
| Smooth muscle actin | Pos | Neg |
| Keratins | Variable positivity | Strong positivity |
| CEA | Pos | Pos |
| S100 | 1 of 2 cases positive | 1 of 2 cases positive |
- Keratins
- AE1, CK7, CK5/6, CK19 positive
- CK17, CK18 weak
- CK20 negative
- Negative: desmin, GCDFP15, MUC2, MUC5AC, MUC6, CK20
