[The diagnostic role of direct microlaryngoscopy]

Sulcus vocalis, vergetures, mucosal bridges, and cysts as intracordal lesions constitute a group of great diagnostic difficulty. We present 6 patients in whom microlaryngoscopy was the final diagnostic step in the evaluation of a lesion not recognized in the initial evaluation. The criteria selected were as follows: Severe GRABS. Stroboscopic parameters: glottal chink without mass lesion, asymmetry of amplitude, and irregularity of vibration, or when discrepancy between examination and quality of the voice exists. Acoustic and aerodynamic measures that demonstrate severe dysphonia. High scores on the Voice Handicap Index. We recommend carrying out a diagnostic microlaryngoscopy examination where the cause of dysphonia is unclear.