Cervical ultrasonography for preoperative T assessment and patient-level detection of cervical nodal metastasis in pharyngeal and laryngeal squamous cell carcinoma: comparison with contrast-enhanced CT and MRI using pathological findings as the reference standard.
BACKGROUND Cervical ultrasonography (US) may complement cross-sectional imaging for nodal assessment in pharyngeal and laryngeal squamous cell carcinoma. AIMS/OBJECTIVES To compare US with contrast-enhanced CT and MRI for patient-level detection of cervical nodal metastasis using pathology as the reference standard;...