Journal
PANCREATOLOGY
Volume 10, Issue 6, Pages 695-701Publisher
ELSEVIER
DOI: 10.1159/000320694
Keywords
Serous cystic neoplasm; Tumor classification; Tumor growth
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Aims: To clarify the clinical features and the natural history of serous cystic neoplasm (SCN) of the pancreas. Methods: We retrospectively analyzed data from 30 patients affected by SCN. SCNs were classified as (1) microcystic type, (2) micro- and macrocystic type, and (3) macrocystic type according to the modified WHO classification. Eighteen patients who underwent serial radiographic imaging were identified, and tumor growth rate in these patients was evaluated. Results: The median age was 62 years, and the female: male ratio was 2:1. Twenty-five patients (83%) were asymptomatic and 5 (17%) were symptomatic. The median tumor size was 2.6 cm. Fifteen cases (50%) had the microcystic type, 7 (23%) the micro-and macrocystic type, and 8 (27%) the macrocystic type. Age, gender, symptoms, location or tumor size did not differ significantly among the three subtypes. Eighteen patients were followed up for a median of 58 months. Morphological changes were observed in 3 patients (17%) and enlargement of tumor size in 9 patients (50%) during the follow-up. The growth rate was 0.29 cm per year and doubling time was 3.5 years; these rates did not differ among morphological subtypes or size of tumors. Conclusions: In asymptomatic patients with a clear imaging diagnosis of SCN, non-operative management with a careful follow-up should be recommended. Surgery should be suggested in only symptomatic patients, those with giant tumors (1 10 cm), rapid growing or when the presence of a potentially malignant tumor cannot be excluded. Copyright (C) 2011 S. Karger AG, Basel and IAP
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