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  • Title: Solid-pseudopapillary tumor of the pancreas: a neoplasm with distinct and highly characteristic cytological features.
    Author: Pettinato G, Di Vizio D, Manivel JC, Pambuccian SE, Somma P, Insabato L.
    Journal: Diagn Cytopathol; 2002 Dec; 27(6):325-34. PubMed ID: 12451561.
    Abstract:
    The solid-pseudopapillary tumor of the pancreas (SPTP) is an unusual low-grade malignant epithelial tumor affecting predominantly adolescent girls and young women. Although approximately 500 cases of SPTP have been described in the last 40 yr, its pathogenesis remains uncertain. However, the clinical features of this neoplasm are very characteristic and SPTP must be suspected in any young woman with a cystic or partially cystic pancreatic mass. In this report, we describe the cytologic features of seven cases of SPTP investigated by preoperative fine-needle aspirates. The analysis of the cytologic features in these cases and in 43 cases collected from the literature reveals that they are highly characteristic and quite distinct from those of other cystic or solid tumors of the pancreas. On this basis, a cytologic diagnosis of SPTP may be rendered with great confidence, not only in clinically typical examples, but also in unusual presentations, such as in older patients, in males, in ectopic locations, and in metastatic sites.
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