Background: Patients with sporadic neuroendocrine neoplasms may exhibit a higher risk of a second primary tumor than the general population. Aim: This study aimed to analyze the occurrence of second primary malignancies.Methods: A retrospective cohort of 2757 patients with sporadic lung and gastro-entero-pancreatic neuroendocrine neoplasms, managed at eight Italian tertiary referral Centers, was included.Results: Between 20 0 0 and 2019, a second primary malignancy was observed in 271 (9.8%) neuroendocrine neoplasms patients with 32 developing a third tumor. There were 135 (49.8%) females and the median age was 64 years. The most frequent locations of the second tumors were breast (18.8%), prostate (12.5%), colon (9.6%), blood tumors (8.5%), and lung (7.7%). The second primary tumor was synchronous in 19.2% of cases, metachronous in 43.2%, and previous in 37.6%. As concerned the neuroendocrine neoplasms, the 5and 10-year survival rates were 87.8% and 74.4%, respectively. PFS for patients with a second primary malignancy was shorter than for patients without a second primary malignancy. Death was mainly related to neuroendocrine neoplasms.Conclusion: In NEN patients the prevalence of second primary malignancies was not negligible, suggest ing a possible neoplastic susceptibility. Overall survival was not affected by the occurrence of a second primary malignancy. (C) 2020 Editrice Gastroenterologica Italiana S.r.l. Published by Elsevier Ltd. All rights reserved.

Second primary neoplasms in patients with lung and gastroenteropancreatic neuroendocrine neoplasms: Data from a retrospective multi-centric study

Andreasi, V;Partelli, S;Falconi, M
2021

Abstract

Background: Patients with sporadic neuroendocrine neoplasms may exhibit a higher risk of a second primary tumor than the general population. Aim: This study aimed to analyze the occurrence of second primary malignancies.Methods: A retrospective cohort of 2757 patients with sporadic lung and gastro-entero-pancreatic neuroendocrine neoplasms, managed at eight Italian tertiary referral Centers, was included.Results: Between 20 0 0 and 2019, a second primary malignancy was observed in 271 (9.8%) neuroendocrine neoplasms patients with 32 developing a third tumor. There were 135 (49.8%) females and the median age was 64 years. The most frequent locations of the second tumors were breast (18.8%), prostate (12.5%), colon (9.6%), blood tumors (8.5%), and lung (7.7%). The second primary tumor was synchronous in 19.2% of cases, metachronous in 43.2%, and previous in 37.6%. As concerned the neuroendocrine neoplasms, the 5and 10-year survival rates were 87.8% and 74.4%, respectively. PFS for patients with a second primary malignancy was shorter than for patients without a second primary malignancy. Death was mainly related to neuroendocrine neoplasms.Conclusion: In NEN patients the prevalence of second primary malignancies was not negligible, suggest ing a possible neoplastic susceptibility. Overall survival was not affected by the occurrence of a second primary malignancy. (C) 2020 Editrice Gastroenterologica Italiana S.r.l. Published by Elsevier Ltd. All rights reserved.
Neuroendocrine neoplasms (NEN)
Neuroendocrine tumors (NET)
Second primary malignancy (SPM)
Second primary neoplasia
Adult
Aged
Aged, 80 and over
Female
Gastrointestinal Neoplasms
Humans
Incidence
Lung Neoplasms
Male
Middle Aged
Neoplasms, Second Primary
Neuroendocrine Tumors
Retrospective Studies
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.11768/132047
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