What's new in benign lung tumours?

Abstract

While lung cancer is one of the most common malignancies routinely encountered by pathologists, benign pulmonary neoplasms are quite rare. However, it is important for pathologists to be familiar with the typical diagnostic features of benign lung tumors to avoid confusing them with malignant morphological mimics. There have also been intriguing discoveries in the genetics of benign pulmonary neoplasms in the past decade. This review will cover several of the most common benign lung tumors, including the diagnostic categories of pulmonary adenomas, bronchial papillomas, and benign mesenchymal tumors, with discussion of the current classification, differential diagnosis, and current knowledge regarding genetic drivers.

Rapid growth of primary pulmonary meningioma with hemoptysis

“…While primary lung cancer and metastatic tumors represent the most commonly encountered neoplasms for clinicians, benign lung tumors are rare clinical entities. These tumors include bronchiolar adenoma/ciliated muconodular papillary tumor, sclerosing pneumocytoma, alveolar adenoma, bronchial papillomas, pulmonary hamartoma, and pulmonary chondroma [ 11 ]. These benign tumors typically exhibit a slow growth rate, and they are symptomatic.…”