Lung Neoplasms, Benign

• • Uncommon

  • < 1% of pulmonary tumors

  • Include:

  • -Fibromas

    -Leiomyomas

    -Neurofibromas

    -Myoblastomas

    -Benign metastasizing leiomyomas

  • Most lesions peripheral

Symptoms and Signs

• • Peripheral: Asymptomatic

  • Central lesions: Cough, wheezing, hemoptysis, recurrent pneumonia

Imaging Findings

• • Chest film: 1-2 cm well-circumscribed, bosselated lower lung nodule with calcifications in 10-30%

• • May be difficult to distinguish from malignant lesions; distinction may occur only after excision

• • Chest x-ray

  • Bronchoscopy may be needed for central lesions

  • Pathologic diagnosis obtained by surgery or fine-needle aspiration

• • Wedge resection

  • Lobectomy if involves proximal airway and associated with infections or bronchiectasis

Surgery

Indications

• • Tissue diagnosis, if unobtainable by bronchoscopy

Prognosis

• • Excellent

References