A Case of Solid Cystic Tumor of the Pancreas with Liver Metastases Associated with Systemic Lupus Erythematosus

A case of solid cystic tumor (SCT) of the pancreas with liver metastases in a 13-year-old woman is reported. The patient, who had been followed for systemic lupus erythematosus, was admitted to our hospital because of pancreatic and liver masses incidentally discovered by abdominal ultrasonography. Diagnostic imaging studies revealed a mass, 8×6×5 cm in size, consisting of solid and cystic components, in the body and tail of the pancreas, and two masses, 2 and 0.5 cm in diameter, in segment VII and IV of the liver, respectively. This led to a clinical diagnosis of pancreatic SCT with liver metastases. A distal pancreatectomy with splenectomy and partial resection of the liver was performed. The histological findings confirmed the diagnosis of pancreatic SCT with liver metastases. No capsular invasion or other metastatic lesions, other than those involving the liver, were found. Flow cytometry revealed a diploid pattern for both primary and metastatic SCTs. The patient has been followed for 4 years and 5 months since the operation with no signs of recurrence. 21 cases of pancreatic SCT with liver metastasis, including this one, have been reported in Japan. This paper presents the clinicopathological studies of these 21 cases.