PURPOSE: This study investigated the clinicopathological features and surgical management of solid pseudopapillary neoplasms at a single institution in Japan. METHODS: Seventeen patients (the largest series in Japan) those underwent surgery for pathologically confirmed solid pseudopapillary neoplasms were retrospectively reviewed. RESULTS: Sixteen patients were women and their mean age was 34.1 years. Most patients were asymptomatic (n = 11), and the average tumor diameter was 51.8 mm. The most common imaging characteristic was tumors of solid and cystic type (n = 10), which were most commonly located in the pancreatic body (n = 7). All patients underwent surgical exploration, i.e., distal pancreatectomies in 7 patients (laparoscopically performed in 2); middle pancreatectomies, 4; pancreaticoduodenectomies, 4; enucleation, 1; and liver resection, 1. No surgical mortalities occurred, and postsurgical complications occurred in 9 patients. Four patients had malignant tumors. One patient with liver metastases experienced recurrence, which was well controlled by paclitaxel. The remaining patients were disease free at a median follow-up of 51 months. CONCLUSIONS: Solid pseudopapillary neoplasms can be treated by complete tumor resection with limited resection or a minimally invasive approach when applicable. The combination of surgical resection and chemotherapy may therefore prolong survival, even in malignant cases.
PURPOSE: This study investigated the clinicopathological features and surgical management of solid pseudopapillary neoplasms at a single institution in Japan. METHODS: Seventeen patients (the largest series in Japan) those underwent surgery for pathologically confirmed solid pseudopapillary neoplasms were retrospectively reviewed. RESULTS: Sixteen patients were women and their mean age was 34.1 years. Most patients were asymptomatic (n = 11), and the average tumor diameter was 51.8 mm. The most common imaging characteristic was tumors of solid and cystic type (n = 10), which were most commonly located in the pancreatic body (n = 7). All patients underwent surgical exploration, i.e., distal pancreatectomies in 7 patients (laparoscopically performed in 2); middle pancreatectomies, 4; pancreaticoduodenectomies, 4; enucleation, 1; and liver resection, 1. No surgical mortalities occurred, and postsurgical complications occurred in 9 patients. Four patients had malignant tumors. One patient with liver metastases experienced recurrence, which was well controlled by paclitaxel. The remaining patients were disease free at a median follow-up of 51 months. CONCLUSIONS:Solid pseudopapillary neoplasms can be treated by complete tumor resection with limited resection or a minimally invasive approach when applicable. The combination of surgical resection and chemotherapy may therefore prolong survival, even in malignant cases.
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