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Lung Cancer and Multiple Neoplasms: A Retrospective Analysis.

A Romaszko¹, E Świetlik², A Doboszyńska²

¹Department of Respiratory Medicine, University of Warmia and Mazury in Olsztyn, 78 Jagiellońska St, 10-357, Olsztyn, Poland. annama90@wp.pl.

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|March 19, 2016

Summary

Multiple malignancies affect 5.0% of lung cancer patients in Poland. Lung cancer often appears as a second cancer, with synchronous cancers diagnosed at an older age than metachronous ones.

Keywords:

Investigation Malignancy Pulmonology Survey

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Area of Science:

Oncology
Epidemiology

Background:

Cancer survival rates have improved due to advances in treatment and early detection.
The increasing prevalence of cancer necessitates understanding patterns of multiple malignancies.

Purpose of the Study:

To determine the frequency of multiple malignancies in hospitalized cancer patients in Poland.
To analyze the role of lung cancer in patients with multiple primary tumors.

Main Methods:

Retrospective analysis of medical records of 1112 cancer patients hospitalized between January 2013 and August 2014.
Inclusion criteria: patients with at least two distinct cancer diagnoses.

Main Results:

5.0% of lung cancer patients had multiple malignancies.
Lung cancer was the most common accompanying malignancy (52 cases).
Lung cancer was more frequently the second malignancy (39 cases) than the first (11 cases) or third (2 cases).
Other primary cancers included colorectal, prostate, renal cell, bladder, hematopoietic, and breast cancers.
Synchronous cancers were diagnosed at an older age compared to metachronous cancers.

Conclusions:

Multiple malignancies represent a significant proportion of lung cancer cases.
Lung cancer frequently occurs as a secondary diagnosis in patients with multiple cancers.
Age at diagnosis differs between synchronous and metachronous multiple cancers.