How is vocal cord paralysis typically diagnosed?

Vocal cord paralysis is typically diagnosed using an endoscope because this method allows for direct visualization of the vocal cords. An endoscope is a flexible or rigid tube equipped with a camera and light source, which can be inserted through the nose or mouth to examine the throat and larynx closely. This examination can reveal the position, movement, and overall health of the vocal cords, helping healthcare professionals identify any abnormalities or paralysis.

The use of an endoscope is preferred because it provides real-time visualization and detailed information that other methods may not be able to capture. While visual inspection may offer some insight, it lacks the thoroughness needed to accurately diagnose vocal cord issues. An MRI, although useful for imaging, is less practical in assessing the dynamic movement of the vocal cords during speech. A hearing test is unrelated to vocal cord function and does not aid in diagnosing paralysis. Therefore, the use of an endoscope is the most effective diagnostic tool in this context.