Incidence, treatment, and survival of patients with appendiceal adenocarcinomas and low-grade appendiceal mucinous neoplasms: linked Swedish national registry study.

ABSTRACT:

Background

Appendiceal adenocarcinomas and low-grade appendiceal mucinous neoplasms (LAMNs) are rare tumours. Much of the existing knowledge is derived from registry-based studies, particularly the Surveillance, Epidemiology, and End Results database in the USA.

Methods

This retrospective cohort study used data from the Swedish Cancer Registry, Swedish Cause of Death Registry, and the National Patient Registry to analyse demographic characteristics and outcomes of patients diagnosed with appendiceal adenocarcinoma or LAMN between 2005 and 2019. Kaplan-Meier survivor function, multivariate Cox regression analysis, standardized mortality ratio, and net survival were used to assess survival. Incidence was estimated by direct standardization from 2005 to 2019.

Results

In

SUBMITTER: Johansson J 

PROVIDER: S-EPMC12419524 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature