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Multiple primary lung cancers.

S C Wu1, Z Q Lin, C W Xu

  • 1Shanghai Chest Hospital, People's Republic of China.

Chest
|November 1, 1987
PubMed
Summary
This summary is machine-generated.

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Multiple primary lung cancers occurred in 0.8% of resected lung cancer cases. Epidermoid carcinoma predominated, with survival rates differing between synchronous and metachronous diagnoses.

Area of Science:

  • Thoracic Surgery
  • Oncology
  • Pulmonology

Background:

  • Multiple primary lung cancers (MPLC) present diagnostic and therapeutic challenges.
  • Understanding the incidence, characteristics, and outcomes of MPLC is crucial for patient management.

Purpose of the Study:

  • To analyze the incidence, clinical features, diagnostic methods, histological types, and prognosis of MPLC.
  • To evaluate the criteria for diagnosing MPLC, including clinicopathologic findings and early diagnostic procedures.

Main Methods:

  • Retrospective review of 30 MPLC cases diagnosed between November 1957 and June 1984 at Shanghai Chest Hospital.
  • Analysis of incidence (0.8% of 3,815 resected primary lung cancers), synchronous vs. metachronous classification, laterality, diagnostic modalities (chest x-ray, bronchoscopy, thoracotomy), histological subtypes, and survival data.

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Main Results:

  • MPLC incidence was 0.8% (30/3,815 cases), with 10 synchronous and 20 metachronous cases.
  • Epidermoid carcinoma was predominant (87%), often mixed with adenocarcinoma or large-cell undifferentiated carcinoma.
  • Average postoperative survival was 29 months for synchronous and 26.2 months for metachronous cases.

Conclusions:

  • Early diagnosis of MPLC is achievable through imaging and bronchoscopy, aiding surgical planning.
  • Epidermoid carcinoma is the most common histological type in MPLC.
  • The study discusses criteria for clinicopathologic findings, early diagnosis, and surgical management of MPLC.