lslet cell neoplasms(ICNs) of pancreas are uncommon, and the cytologic features of ICN are not well delineated, We report a case of islet cell tumor with lymph node metastasis, describing the cytologic, histologic, and immunohistochemical
findings.
A 40-year-old woman was admitted due to upper gastrointestinal bleeding of 2 days' duration. Computed tomography of the abdomen showed a diffusely infiltrating bulky mass in the body and tail of the pancreas. The fine needle
aspirate
showed moderate to high cellularity monotonous cell population single cell predominance over small cell clusters, and eccentrically located nuclei. Although the definite diagnosis of ICN on the cytologic basis is difficult, the
cytomorphologic
features are sufficiently distinctive to suggest the diagnosis.
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