Vocal Cord Cyst

Overview

A vocal cord cyst is a benign (noncancerous) sac that forms within or just beneath the surface lining of a vocal cord. It is usually filled with fluid, mucus, or other soft material. Because it sits in the delicate vibrating tissue of the vocal cord, even a small cyst can interfere with the voice.

There are two main types: mucus retention cysts, which form when a small gland duct becomes blocked, and epidermoid cysts, which contain skin-like material. Vocal cord cysts often cause persistent hoarseness and can be mistaken for nodules. They are typically benign, but persistent voice changes always deserve evaluation by a specialist to confirm the cause.

A cyst affects the voice because it adds mass to the delicate vibrating part of the vocal cord and can keep the cords from closing and vibrating evenly. Even a small cyst can cause noticeable hoarseness, especially in people who use their voice professionally. Because cysts are distinct sacs buried in the cord rather than surface thickenings, they often behave differently from nodules and may need a more precise approach to treatment, including surgery in some cases.

Symptoms

Symptoms mainly involve the voice and can resemble other vocal cord lesions. They may include:

• Persistent hoarseness or a rough voice
• A breathy or strained voice quality
• Reduced vocal range, especially difficulty with higher notes
• Vocal fatigue with prolonged talking or singing
• Effortful voicing or a sense of throat tightness
• Frequent throat clearing or a lump-in-the-throat feeling

Symptoms are often more persistent than those of simple voice strain and may not improve much with voice rest alone.

Causes

Vocal cord cysts can be present from birth or develop later. Causes and contributors include:

• Blocked gland duct: A mucus retention cyst forms when a small gland in the vocal cord lining becomes blocked and traps mucus.
• Congenital factors: Some cysts, particularly epidermoid types, may be present from birth or arise from trapped tissue.
• Vocal trauma and overuse: Repeated voice strain may contribute to or worsen some cysts.
• Irritation: Factors such as acid reflux can aggravate the vocal cords.

Unlike nodules, cysts are discrete sacs rather than callus-like thickenings.

Risk Factors

• Heavy or strained voice use (singers, teachers, speakers)
• Poor vocal technique
• Acid reflux
• Smoking and exposure to irritants
• A history of vocal cord injury

Diagnosis

An ENT specialist diagnoses a vocal cord cyst by closely examining the vocal cords. Evaluation may include:

• Laryngoscopy: Viewing the vocal cords with a small camera to identify the lesion.
• Videostroboscopy: A key tool that shows how the vocal cords vibrate and helps distinguish a cyst from nodules or polyps.
• Voice evaluation: Assessing voice quality and use.
• History: Reviewing voice habits, reflux, and the course of symptoms.

Treatment

Treatment depends on the size of the cyst and how much it affects the voice. Options include:

• Voice therapy: Working with a speech-language pathologist to optimize voice use and reduce strain; this can improve symptoms and is often tried first.
• Treating contributing factors: Managing acid reflux and avoiding irritants such as smoking.
• Surgery: Many cysts that significantly affect the voice are treated with a precise microsurgical procedure to remove the cyst while preserving as much normal tissue as possible.
• Voice therapy after surgery: To support healing and rebuild healthy voice habits.

Because cysts are distinct sacs, they often respond less to voice rest alone than nodules do, and surgery is more frequently needed for lasting relief.

Prevention

• Use good vocal technique and avoid straining the voice
• Stay well hydrated
• Avoid smoking and airborne irritants
• Manage acid reflux
• Rest your voice when it is tired or hoarse and take breaks during heavy voice use

When to See a Doctor

See a doctor or ENT specialist if you have:

• Hoarseness or a voice change lasting more than two to three weeks
• Voice problems that affect your work or daily life
• Voice changes that do not improve with rest

Persistent hoarseness should always be evaluated, since it can occasionally point to other conditions of the voice box that need attention.

Related Topics

Frequently Asked Questions

References

1. American Speech-Language-Hearing Association (ASHA). Voice disorders.
2. National Institute on Deafness and Other Communication Disorders (NIDCD). Hoarseness.
3. MedlinePlus, U.S. National Library of Medicine. Vocal cord disorders.