microlaryngoscopy Microlaryngoscopy showing the normal anatomy of the epiglottis (A) and larynx (B) Microlaryngoscopy is a magnified, diagnostic examination of the larynx (voice box) conducted while the child is anesthetized in the operating room. If a child requires examination of the vocal cords, they will have a microlaryngoscopy. This examination is very quick, and is done through the mouth with a small camera. Video and still images are captured to document the exam.