Sulcus vocalis is a thinning or absence of a special layer of tissue.
There are congenital factor and acquired factor.
Laryngopharyngeal reflux, ruptured vocal cyst, infection based disease, vocal folds
damage and so forth can be the main causes of sulcus vocalis.
Sulcus vocalis causes a characteristic harsh, reedy hoarseness. People with sulcus vocalis frequently exert
unusual effort to produce voice, and find it more difficult to be heard in the noisy background.
Microlaryngeal surgery can be performed to incise the sulcus vocalis.
PDL laryngeal surgery can be often accompanied but when the symptom is severe it should be performed
under general anesthesia and skin incision is required. Recently, PDL surgery itself draws the satisfactory surgical outcome.