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Cancers in multiple primary sites

K Engin1

  • 1Center of Oncology & Nuclear Medicine, Okmeydani Hospital, Istanbul, Turkey.

International Surgery
|January 1, 1994
PubMed
Summary
This summary is machine-generated.

Multiple primary cancers (MPC) occurred in 0.83% of 9180 patients, with larynx and lung cancer being the most frequent combination. Smoking was prevalent, especially in male patients with these combined cancers.

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Area of Science:

  • Oncology
  • Epidemiology

Background:

  • Multiple primary cancers (MPC) represent a significant clinical challenge.
  • Understanding the incidence and patterns of MPC is crucial for patient management and research.

Purpose of the Study:

  • To investigate the incidence, characteristics, and common combinations of multiple primary cancers.
  • To analyze demographic factors, cancer types, and intervals between diagnoses in MPC patients.

Main Methods:

  • Retrospective analysis of 9180 cancer patients admitted to a single center.
  • Identification and classification of patients diagnosed with two or more primary cancers.
  • Statistical analysis of demographic data, cancer types, and time intervals between primary diagnoses.

Main Results:

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  • An overall incidence of 0.83% for MPC was observed (76 out of 9180 patients).
  • The most common cancer combination was larynx and lung cancer, particularly in male patients.
  • Breast cancer was a frequent component in female patients with MPC.
  • The mean interval between diagnoses was 4.1 years, with 62% diagnosed within 3 years.
  • High smoking rates were noted, especially in patients with combined respiratory and upper aerodigestive tract cancers.

Conclusions:

  • Larynx and lung cancers represent a significant association in multiple primary cancers, strongly linked to smoking.
  • The study highlights the importance of considering smoking cessation and tailored screening for high-risk individuals.
  • Further research is warranted to explore genetic and environmental factors contributing to MPC.