Lungenknoten

Lungenknoten, also known as pulmonary nodules, are small masses of tissue that can be found within the lungs. They can be benign (non-cancerous) or malignant (cancerous), and their presence is often detected during imaging studies such as chest X-rays, CT scans, or PET scans. The size of a lung nodule is typically measured in millimeters, with nodules smaller than 30 mm being considered small, and those larger than 30 mm being considered large.

Lung nodules can be classified based on their appearance on imaging studies. Solid nodules have a uniform density and appear as a single mass. Part-solid nodules have a mix of solid and non-solid components. Ground-glass nodules have a hazy appearance and are often associated with lung cancer. Subsolid nodules have a non-solid appearance and can include cystic, necrotic, or air-filled components.

The cause of lung nodules can vary widely. Benign causes include infection, inflammation, and granulomas. Malignant causes include primary lung cancer, metastatic cancer from other parts of the body, and other rare conditions. The diagnosis of lung nodules often requires further evaluation, such as biopsy, to determine whether they are benign or malignant.

The treatment of lung nodules depends on their size, location, and whether they are benign or malignant. Small, benign nodules may not require treatment and can be monitored over time. Larger or malignant nodules may require surgical resection, radiation therapy, or other treatments. Regular follow-up imaging is often recommended to monitor the size and progression of lung nodules.