parasternal mediastinotomy
Pronunciation: pair-uh-STUR-nal mee-dee-ass-tin-AH-tuh-mee
Surgical procedure creating a small opening beside the sternum to access anterior mediastinal structures for biopsy or staging.
Full Definition
A minimally invasive surgical approach to the anterior mediastinum performed through a small incision adjacent to the sternum, typically in the second or third intercostal space. This technique, also known as the Chamberlain procedure, allows access to anterior mediastinal lymph nodes, masses, or other structures that cannot be reached safely through other approaches. The procedure is commonly used for tissue diagnosis of mediastinal masses, lymph node sampling for lung cancer staging, or evaluation of thymic lesions. It provides good visualization of anterior mediastinal structures while avoiding the morbidity associated with median sternotomy. The technique is particularly valuable when anterior mediastinal involvement needs to be confirmed or excluded before definitive treatment planning.
Usage
Usage note: Chamberlain procedure is the eponymous term; both terms acceptable in clinical documentation.
In Context
- "Parasternal mediastinotomy was performed to obtain tissue diagnosis of the anterior mediastinal mass." — Operative report
- "The Chamberlain procedure confirmed involvement of paratracheal lymph nodes." — Staging evaluation