Immunohistochemical markers with high specificity for differentiating tumour types in malignant pleural effusion
| Mesothelial markers | Adenocarcinoma markers | Squamous-cellcarcinoma markers | Organ-specific markers |
| Calretinin | CEA | P40 | Lung: TTF-1, Napsin A |
| CK5/6 | B27.3 | P63 | Prostate: PSA, PSMA |
| D2-40 (podoplanin) | Bg8 | CK5/6 | Kidney: PAX-2, PAX-8, RCC, CAIX |
| WT-1 | BerEP4 | Pancreas: CA 19-9 | |
| MOC-31 | Gastrointestinal: CDX-2, CK20 | ||
| Gynaecological: PAX-8, WT1 | |||
| Breast: Mammaglobin, GCDFP-15, ER, PR, GATA3 |