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Related Experiment Video

Updated: May 31, 2025

Multifractal Spectrum Analysis for Assessing Pulmonary Nodule Malignancy
05:24

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Published on: January 10, 2025

302

Clinical difference between solitary and multiple pulmonary adenocarcinoma nodules.

Yang Jiaming1, Zhou Haishen1, Xie Shi1

  • 1Department of Thoracic Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou, China.

Tumori
|January 24, 2025
PubMed
Summary
This summary is machine-generated.

Multiple primary lung adenocarcinoma nodules show less aggressive biological behavior and a significantly lower risk of lymph node metastasis compared to solitary nodules. This finding aids in clinical diagnosis and treatment strategies for lung cancer.

Keywords:
Multiple primary lung cancersadenocarcinomalymphatic metastasismultiple pulmonary nodules

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Area of Science:

  • Pulmonology
  • Oncology
  • Radiology

Background:

  • Lung adenocarcinoma is a common malignancy.
  • Distinguishing between solitary and multiple nodules is crucial for prognosis.
  • Understanding biological behavior differences informs treatment.

Purpose of the Study:

  • To compare imaging features, tumor markers, immunohistochemistry, and lymph node metastasis rates.
  • To analyze differences between solitary and multiple primary lung adenocarcinoma.
  • To provide a reference for clinical diagnosis and treatment.

Main Methods:

  • Retrospective analysis of 212 lung adenocarcinoma patients (2022-2023).
  • Propensity score matching to compare solitary (149) and multiple (63) nodules.
  • Binary logistic regression to analyze lymph node metastasis risk.

Main Results:

  • Significant differences found in mean CT value, Ki-67, PD-L1 expression, and lymph node metastasis rates.
  • Multiple nodules had an 80.8% lower probability of lymph node metastasis (P=0.042).
  • No significant differences in nodule type, imaging features, serological markers, ALK-positive, or SYN-positive rates.

Conclusions:

  • Multiple primary lung adenocarcinoma nodules demonstrate milder biological behavior.
  • Solitary lung adenocarcinoma nodules present a higher risk of lymph node metastasis.
  • Findings support differentiated clinical management based on nodule multiplicity.