Is hepatic ultrasonography necessary in the initial check-up of patients with squamous cell carcinoma of the upper respiratory and digestive tract?
Our results compared with those of the literature revealed that ultrasound scan of the liver is a few specific examination which may be recommended for hypopharyngeal tumors, or for a large cervical adenopathy (N2 or N3), a poor differentiated tumor wherever the site of the primary tumor is.
Reinforcing the mechanical suture line of bronchial stump with bovine pericardial matrix plus collagen shows suboptimal biomechanical and histological characteristics compared to using the stapler alone.