Diffusion-weighted MRI in diagnosing thyroid cartilage invasion in laryngeal carcinoma.

The diagnosis of thyroid cartilage invasion in patients presenting with laryngeal carcinoma is essential for pre-therapeutic staging. Compared to CT, diffusion-weighted magnetic resonance imaging (MRI) has a similar ability to define the interface between fat and tumor, but is superior for assessing muscle and cartilage invasion. Diffusion-weighted MRI may be indicated if there are equivocal findings in the CT, including possible cartilage invasion.

Variables related to recurrence of pleomorphic adenomas: outcome of parotid surgery in 182 cases.

Objective: We present our experience in parotid surgery for pleomorphic adenomas; analyzing a prospectively recorded database of parotidectomy; aiming to identify independent variables related to adenoma recurrence.

Study Design: Prospective case series.

Methods: Data of 182 patients; 164 new tumors and 18 revision parotidectomies were analyzed.

Adjustable laterofixation of the vocal fold in bilateral vocal fold paralysis.

Objectives/hypothesis: To describe a modification of VF laterofixation in patients with bilateral vocal fold paralysis (VFP), which allows adjusting the sutures tension according to voice and airway patency in the first postoperative day.

Study Design: Prospective case study.

Methods: Twenty-one patients with recent bilateral VFP were treated by the modified laterofixation technique in Ain-Shams University hospitals between May 2007 and February 2009.