Abstract
We report a case of pulmonary parenchymal leiomyoma. The patient was a 50-year-old female, with a tumor in the anterobasal segment of the right lung. Right lower lobectomy was performed. The tumor was 4×2×2cm in size, showing smooth and yellow-white cut sufaces. Specific stainings, including immunostaining and electron microscopy, established a diagnosis of pulmonary leiomyoma.