This study aims to evaluate the diagnostic accuracy of preoperative computed tomography (CT) and intraoperative endoscopic tumor staging with regard to histopathologic staging in patients with early laryngeal cancer.
A retrospective nonrandomized single-institution comparative cohort study including 109 patients.
A tertiary surgical center.
Patients were treated for T1a, T1b, and T2a laryngeal squamous cell carcinoma by endoscopic laser surgery. The outcome measures were the presence of under- or overstaging in endoscopic and CT findings and positive postoperative margins.
Endoscopic overstaging as compared with histopathologic T category correlated with rising tumor category (
Our results indicate that CT adds little valuable information in differentiating small superficial lesions in the glottis, while systematically overstaging cases of early laryngeal cancer. In T1a and T1b glottic tumors, endoscopy should be the preferred diagnostic method.

