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. Author manuscript; available in PMC: 2013 Jan 3.
Published in final edited form as: Ann Surg. 2012 Feb;255(2):326–333. doi: 10.1097/SLA.0b013e3182378a18

TABLE 2.

Clinicopathological Characteristics of Synchronous and Metachronous IPMNs in the Current Series

Parameter Synchronous
IPMN Group		 Metachronous
IPMN Group
Cases, all: N = 34 29 (85%)    5 (15%)
Age, median years (range) 68 (50–82)  64 (47–82)
Gender, male : female      11:18       2:3
Familial pancreatic cancer history   5 (17%)    1 (20%)
Degree of dysplasia 11 (38%)    1 (20%)
    IPMN, low-grade dysplasia 12 (41%)    1 (20%)
    IPMN, intermediate dysplasia   3 (10%)    3 (60%)
    IPMN, high-grade dysplasia   3 (10%)    0 (0%)
    IPMN with invasive carcinoma
Duct location
    Main   0 (0%)    0 (0%)
    Branch 25 (86%)    5 (100%)
    Mixed   4 (14%)    0 (0%)
Predominant epithelial subtype
    Gastric-foveolar 23 (96%)    5 (100%)
    Intestinal   0 (0%)    0 (0%)
    Pancreatobiliary   1 (4%)    0 (0%)
    Oncocytic   0 (0%)    0 (0%)
    Not applied   5 (21%)    0 (0%)
Site of resected cyst
    Head 12 (41%)    5 (100%)
    Uncinate   8 (27%)    0 (0%)
    Neck   7 (23%)    1 (20%)
    Body 14 (47%)    4 (80%)
    Tail 15 (52%)    4 (80%)
Number of resected IPMNs, median (range)   2 (2–6)    2 (2–4)
Maximum cyst size, cm (range)   2 (0.5–6) 1.2 (0.4–5.5)