Hypopharyngeal Cancer pT4a TNM Finding v7

**Semantic type:** Finding

**Definition:** Hypopharyngeal cancer with moderately advanced local disease. Tumor invades the thyroid/cricoid cartilage, hyoid bone, thyroid gland, or central compartment soft tissue. Central compartment soft tissue includes prelaryngeal strap muscles and subcutaneous fat. (from AJCC 7th Ed.)