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Pulmonary Smooth Muscle Hyperplasia Difficult to Differentiate from Primary Lung Cancer: A Case Report

Masaya Yamasaki1, Yasuaki Kubouchi1, Toho Wada1

  • 1Department of Surgery, Division of General Thoracic Surgery, and Breast and Endocrine Surgery Faculty of Medicine, Tottori University, Yonago, Tottori, Japan.

Surgical Case Reports
|September 5, 2025
PubMed
Summary

Pulmonary smooth muscle hyperplasia (SMH) is a rare benign lung tumor that can mimic lung cancer on CT scans. This case highlights the importance of final histopathology for accurate diagnosis and avoiding overtreatment.

Keywords:
benign pulmonary tumorlung cancersmooth muscle hyperplasia

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