Important Announcements

Nondiscrimination Policy Update

Boston Medical Center Health System complies with applicable Federal civil rights laws and does not discriminate on the basis of age, race, color, national origin (including limited English proficiency and primary language), religion, culture, physical or mental disabilities, socioeconomic status, sex, sexual orientation and gender identity and/or expression. BMCHS provides free aids and services to people with disabilities and free language services to people whose primary language is not English.

To read our full Nondiscrimination Statement, click here.

Your physician uses an endoscope (a long, flexible tube) with a small ultrasound transducer on the tip to obtain images of the lymph nodes deep in the chest. This instrument is passed into your esophagus. The transducer sends high-frequency sound waves to the organs to create detailed images of them. You should avoid food and drink for at least 6 hours before the procedure, and you will be sedated, so you should not drive or return to work for 24 hours.

Preparation Instructions