Pathological characteristics of resected specimens from the respective patients
| Sample | Gender | Age (years) | Stage | Location | TNM | Type of specimen | Neoadjuvant (chemo)therapy | History of malignancy | Type of malignancy | Mucine | Pancreatitis in tumor specimen | Dirty necrosis | TLS |
| ISPIC1 | Male | 52 | IIB | Head | pT1N1M0 | PPPD/Whipple | No | + | – | – | + | ||
| ISPIC5 | Female | 49 | IIB | Head | pT3N1M0 | PPPD/Whipple | No | – | – | + | – | ||
| ISPIC12 | Male | 64 | IIB | Tail | pT2N1M0 | Lap.distal pancreatectomy | No | Yes | Colon | – | + | – | – |
| ISPIC17 | Male | 68 | IA | Head | pT1cN0M0 | PPPD/Whipple | No | + | + | + | + | ||
| ISPIC18 | Female | 75 | IIB | Head | pT1cN2M0 | PPPD/Whipple | No | – | – | + | – | ||
| ISPIC20 | Male | 73 | IB | Head | pT2N0M0 | PPPD/Whipple | No | – | – | – | – | ||
| ISPIC21 | Female | 68 | IIB | Tail | pT2N2M0 | Open distal pancreatectomy | No | + | – | – | – | ||
| ISPIC22 | Male | 77 | IV | Head | pT2N2M1 | PPPD/Whipple | No | Yes | Prostate | – | – | – | – |
| ISPIC23 | Male | 54 | IIB | Head | pT2N2M0 | PPPD/Whipple | No | – | – | + | + | ||
| ISPIC24 | Male | 71 | IIB | Head | pT2N1M0 | PPPD/Whipple | No | – | – | + | – | ||
| ISPIC26 | Male | 54 | IIB | Head | pT2N2M0 | PPPD/Whipple | No | – | – | + | – |
PPPD, pylorus-preserving pancreaticoduodenectomy; TLS, tertiary lymphoid structure; TNM, tumor, node, metastasis.