MR Imaging of Laryngeal Cancer

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Abstract
Forty-four consecutive patients with laryngeal carcinomas presenting at different stages of the disease were investigated by magnetic resonance (MR) imaging. Twelve patients (six with primary lesions and six with recurrent tumors) underwent laryngectomy, and the macro- and microscopic appearance of the slice specimens were correlated with MR imaging. In the remaining patients surgery was not performed, and MR results are compared with the laryngoscopic findings. Canerous tissue was seen on T1-weighted images as a homogeneous mass of intermediate signal intensity, slightly higher than infrahyoid muscles. The MR examination failed mainly in patients with tumor recurrence who had undergone previous radiation treatment.