Two patients with a pancreatic neoplasm were reported. In both cases the tumor occurred in adolescent female (15 and 16-year-old) who complained of abdominal pain and presented with a palpable mass in one case. One required nearly total resection of the tumor with combined resection of coIonic mesentery, and the other required a partial resection of the tail of pancreas. Those tumors were approximately 6 × 6 × 5 cm and 8 × 8 × 8 cm in size. Gross pathological examinations revealed apparent encapsulation, cystic degeneration, and hemorrhagic necrosis. Microscopically, the tumors were characterized by distinctive solid and papillary patterns. Such lesions have been reported recently in the literature as "solid and cystic" tumor of the pancreas. Approximately 36 such cases have been reported to date in the Japanese literature. There are only two patients died from distant metastasis or local invasion. Our patients presented here are alive and well 22 and 23 months after surgery. Assessing the degree of malignancy is difficult since this tumor is capable of local invasion but usually does not metastasize. However, according to therapeutic results from literatures, this kind of pancreatic tumor is potentially curable by surgical resection.
