Table 3

Characterization of Unusual Pancreatic Tumours in the Literature

Tumour type/series	Average age, yr	Female, %	Asymptomatic, %	Malignant, %
Nonfunctional neuroendocrine tumour16^,20^,36	53.5–59.9	36–39	11	83–100
Serous cystadenoma10^,11^,21	54.7	86	32–59	0
Mucinous cystic tumour10	56	61–87	13–28	21–37
Intraductal papillary mucinous tumour18^,32	67.4	44	15	37
Papillary cystic and solid tumour17^,19	24–27	86–93	30	14.7