Table 2. Four cases of MD-IPMNs with FPPA.

MD-IPMNs: main duct intraductal papillary mucinous neoplasms of the pancreas; FPPA: focal pancreatic parenchymal atrophy; Ph: pancreatic head; Pb: pancreatic body; LG-IPMN: low-grade IPMN; IC: IPMN with an associated invasive carcinoma; HG-IPMN: high-grade IPMN.

Patient no.	Location	FPPA pattern	Histological grade	Histological subtype
1	Ph	Slimness type	LG-IPMN	Gastric
2	Ph	Slimness type	LG-IPMN	Gastric
3	Ph	Slit type	IC	Pancreatobiliary
4	Pb	Cave-in type	HG-IPMN	Intestinal