parietal pleura
The outer layer of pleura that lines the chest wall and diaphragm in thoracic oncology contexts.
Full Definition
The parietal pleura is the outer membrane of the pleural space that adheres to the chest wall, diaphragm, and mediastinum. In thoracic oncology, involvement of the parietal pleura is a critical staging factor that affects surgical resectability and prognosis. Parietal pleural invasion (T3 disease) significantly impacts treatment planning and may contraindicate certain surgical approaches. Assessment of parietal pleural involvement is typically evaluated through imaging and confirmed histologically when tissue samples are obtained.
Usage
Usage note: Often confused with visceral pleura in clinical documentation; editors should verify correct anatomical reference.
In Context
- "The CT scan demonstrated tumor invasion of the parietal pleura, upstaging the patient to T3 disease." — Radiology report
- "Intraoperative findings confirmed adherence to the parietal pleura requiring en bloc resection." — Surgical report