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The Clinicopathological Aspects of Primary Presacral Neuroendocrine Neoplasms: One Center Experience.
Pancreas 2018 January
OBJECTIVES: Presacral neuroendocrine neoplasms (NENs) are rare entities that are found at the presacral space. We report our experience in the diagnosis, management, and outcomes of primary presacral NENs.
METHODS: This was an institutional review board-approved retrospective review of medical records and surgical pathology specimens of patients with a diagnosis of NENs at Cedars-Sinai Medical Center between January 2000 and April 2016.
RESULTS: Ten patients were identified. The median age at presentation was 38 years (range, 20-77 years), and 8 were women. One patient presented with carcinoid-like symptoms, 2 were diagnosed incidentally, and 7 presented with symptoms related to mass effect. The median size of the tumor was 7.0 cm (range, 3-12 cm). On pathologic review, 3 of 10 were low-grade and well-differentiated, 5 of 10 were intermediate-grade and well-differentiated, 2 of 10 were grade 3 and classified as high-grade and poorly differentiated neuroendocrine tumors. Seven cases were metastatic on presentation with lymph node, liver, lung, or skeletal metastasis. Seven of 8 cases were detectable using Octreoscan. Eight patients were treated with a somatostatin analog and 5 patients were treated surgically.
CONCLUSIONS: Presacral NENs are clinically similar to gastroenteropancreatic tumors. Octreoscan imaging and somatostatin analog therapies were frequently applied. Further biologic characterization of this rare subtype is needed.
METHODS: This was an institutional review board-approved retrospective review of medical records and surgical pathology specimens of patients with a diagnosis of NENs at Cedars-Sinai Medical Center between January 2000 and April 2016.
RESULTS: Ten patients were identified. The median age at presentation was 38 years (range, 20-77 years), and 8 were women. One patient presented with carcinoid-like symptoms, 2 were diagnosed incidentally, and 7 presented with symptoms related to mass effect. The median size of the tumor was 7.0 cm (range, 3-12 cm). On pathologic review, 3 of 10 were low-grade and well-differentiated, 5 of 10 were intermediate-grade and well-differentiated, 2 of 10 were grade 3 and classified as high-grade and poorly differentiated neuroendocrine tumors. Seven cases were metastatic on presentation with lymph node, liver, lung, or skeletal metastasis. Seven of 8 cases were detectable using Octreoscan. Eight patients were treated with a somatostatin analog and 5 patients were treated surgically.
CONCLUSIONS: Presacral NENs are clinically similar to gastroenteropancreatic tumors. Octreoscan imaging and somatostatin analog therapies were frequently applied. Further biologic characterization of this rare subtype is needed.
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