Mediastinal lymphadenopathy: a practical approach

Area of Science:

• Pulmonology
• Oncology
• Radiology

Background:

• Mediastinal lymphadenopathy presents with diverse benign and malignant causes, varying by demographic.
• Thoracic imaging is the primary detection method for enlarged mediastinal lymph nodes.
• Common etiologies include lung cancer, lymphoma, sarcoidosis, and tuberculosis.

Purpose of the Study:

• To review the causes and diagnostic modalities for mediastinal lymphadenopathy.
• To present a practical approach for evaluating patients with this condition.
• To highlight the importance of accurate diagnosis for optimal management.

Main Methods:

• A comprehensive literature search of the PUBMED database was conducted.
• Relevant articles on causes, imaging, and interventional diagnostic techniques were identified and analyzed.
• The review focuses on integrating clinical, radiological, and pathological findings.

Main Results:

• Malignancies and granulomatous diseases are the most frequent causes of mediastinal lymphadenopathy.
• Endosonographic modalities such as Endobronchial Ultrasound-Transbronchial Needle Aspiration (EBUS-TBNA), Endoscopic Ultrasound-Fine Needle Aspiration (EUS-FNA), and EUS-B-FNA are highly effective.
• These minimally invasive techniques provide a high diagnostic yield and are central to current diagnostic strategies.

Conclusions:

• Accurate diagnosis of mediastinal lymphadenopathy is essential for guiding treatment decisions.
• Physicians must be familiar with the clinico-radiological features of common causes.
• Prioritizing least invasive diagnostic methods with high yield, particularly endosonography, is crucial for favorable patient outcomes.