Table 1.

Demographics and subtypes of intraductal papillary mucinous neoplasms (n = 129) (mean ± SD) n (%)

Features	Value
Age (yr)	60.9 ± 9.6 (range, 32-77)
Sex (M:F)	94:35
Symptoms
(-)	66 (51.2)
(+)	63 (48.8)
Mean tumor size (cm)	3.7 ± 3.2 (range, 0.6-16.5)
Mean MPD size (mm)	7.4 ± 4.8 (range, 1.0-30.0)
Tumor location
Pancreatic head or uncinate process	80 (62.0)
Body or tail	49 (28.0)
Duct types on CT
Main duct	56 (43.4)
Branch duct	46 (35.7)
Mixed duct	27 (20.9)
Pathologic subtypes
Adenoma	51 (39.5)
Borderline	30 (23.3)
CIS	5 (3.9)
Invasive	43 (33.3)

MPD: Main pancreatic duct; CT: Computed tomography; CIS: Carcinoma in situ.