Iatrogenic intramural esophageal hematoma during EUS-B-FNA procedure

Esophageal ultrasound with bronchoscope fine needle aspiration (EUS-B-FNA) is a valuable tool for the diagnosis and staging of lung cancer, complementing endobronchial lung ultrasound (EBUS). While generally considered safe, there is a notable lack of comprehensive knowledge within the interventional pulmonology community regarding potential complications.

We present a case involving a 66-year-old male with squamous cell lung carcinoma undergoing mediastinal staging. A systematic mediastinal assessment through EBUS confirmed the presence of enlarged lymph nodes at 4 L with limited access to puncture. Complementary EUS-B widened the visualization and access to station 4 L and after excluding nearby vessels, a single puncture was performed. Unexpectedly, an iatrogenic esophageal hematoma was promptly noted at the puncture site. The procedure was immediately interrupted, and subsequent workup confirmed the hematoma without active bleeding. Conservative management, including upper endoscopy and clip sealing, resulted in the patient's asymptomatic recovery.

This case underscores the importance of recognizing and managing complications associated with EUS-B-FNA, emphasizing the need for heightened awareness and education in the interventional pulmonology community. Despite being infrequently discussed in medical literature, EUS-B-FNA can give rise to both immediate and delayed complications, warranting increased vigilance during its practice.