Bronchial Carcinoid Tumor
Overview
Plain-Language Overview
Bronchial carcinoid tumors are rare growths that develop in the lungs, specifically in the airways called bronchi. These tumors arise from special cells that produce hormones, which can sometimes cause unusual symptoms. The main health impact is related to how the tumor blocks airflow or releases substances that affect the body. People may experience symptoms like coughing, wheezing, or difficulty breathing. Because these tumors grow slowly, they often cause symptoms gradually. Early detection is important to manage the condition effectively. Treatment usually involves removing the tumor to restore normal lung function.
Clinical Definition
Bronchial carcinoid tumors are low-grade neuroendocrine neoplasms originating from enterochromaffin cells in the bronchial mucosa. They represent a subset of pulmonary neuroendocrine tumors characterized by slow growth and potential hormone secretion, leading to carcinoid syndrome in some cases. These tumors are classified as typical or atypical based on mitotic rate and necrosis, with typical carcinoids having fewer mitoses and no necrosis. They commonly present with obstructive respiratory symptoms or hemoptysis due to endobronchial growth. Although generally less aggressive than other lung cancers, they can metastasize, especially atypical types. Diagnosis and management are critical due to their potential to cause both local airway obstruction and systemic effects from hormone release.