Endocrine oncology

Prevalence of Second Primary Malignancies in Patients With Well-Differentiated Neuroendocrine Tumors

Endocr PractPublished Retrospective cohort study

Authors' conclusion

The risk of SPMs is high in NETs, with multiple neoplasms diagnosed in over one sixth of patients. Active surveillance for SPMs is strongly indicated and should be integral to the follow-up of NETs.

Study context

Population
Patients with metastatic well-differentiated gastro-entero-pancreatic neuroendocrine tumors (NETs) and lung carcinoids treated with SSA at a specialized center
Participants
135 vs 94
Exposure
NETs vs control group
  • NETsn = 135
  • Controln = 94reference
Outcome
Prevalence of second primary malignancies (SPMs)
Methodological detailssingle-centre, control group
  • Single-centre
  • Control group

Main finding

As reported in the abstract

SPMs

Control

7.7%

7

P = 0.029

26 Second Primary Malignancies (SPMs) diagnosed in 24 patients
17.8%

Observational data: associations, not effects.

Further findings

Duration from NET diagnosis to end of follow-up — NETs
mean 5.3 (SD 3.8) years
Age at end of follow-up (NETs)
64.8 · mean · SD 10.2 · years

Original publication

Prevalence of Second Primary Malignancies in Patients With Well-Differentiated Neuroendocrine Tumors. Endocr Pract. Published 3 January 2025. doi:10.1016/j.eprac.2024.12.020

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