Phoniatrics and Voice Disorders Practice Questions

Q: What is the recommended treatment for early vocal nodules?

Voice therapy. **Explanation:** Vocal nodules (Singer’s or Teacher’s nodules) are benign, bilateral, symmetrical swellings located at the junction of the **anterior 1/3rd and posterior 2/3rds** of the vocal folds. They are caused by chronic mechanical trauma due to vocal abuse or misuse. **Why Voice Therapy is Correct:** The primary pathophysiology of early vocal nodules is localized edema and congestion (soft nodules). Since the underlying cause is functional (misuse of the voice), the first-line management is **conservative**. Voice therapy focuses on re-educating the patient on proper breath support and vocal hygiene, which allows the early inflammatory changes to resolve spontaneously. **Analysis of Incorrect Options:** * **A & B (Excision/Laser Ablation):** Surgical intervention (Microlaryngeal Surgery) is reserved only for **chronic, fibrotic (hard) nodules** that have failed a trial of voice therapy. Early surgical intervention in soft nodules is contraindicated as it may lead to unnecessary scarring of the Reinke’s space. * **D (Tissue sampling):** Vocal nodules have a characteristic clinical appearance and history. Routine biopsy is not indicated unless there is clinical suspicion of malignancy (e.g., unilateral lesion, irregular surface, or persistent hoarseness in a smoker). **High-Yield Clinical Pearls for NEET-PG:** * **Location:** Junction of anterior 1/3 and posterior 2/3 (point of maximum vibration). * **Demographics:** Most common in male children and adult females. * **Stroboscopy:** Shows an "hourglass" glottic closure pattern. * **Management Rule:** Always start with **Voice Therapy**; surgery is the last resort.

Q: A 26-year-old female presents with a scratchy, croaky voice. Which of the following statements is true?

Adductor dysphonia is the underlying cause.. ### Explanation The clinical presentation of a **"scratchy, croaky, or strained-strangled"** voice in a young adult is characteristic of **Adductor Spasmodic Dysphonia (ADSD)**, the most common type of focal laryngeal dystonia. #### 1. Why Option C is Correct In Adductor Dysphonia, there are involuntary spasms of the **Adductor muscles** (primarily the Lateral Cricoarytenoid and Thyroarytenoid). This causes the vocal folds to slam together tightly during speech, resulting in a voice that sounds forced, "choked," or "strained-strangled" with frequent pitch breaks. #### 2. Why Other Options are Incorrect * **Option A:** While Botulinum toxin (Botox) is the gold standard treatment, it is injected into the **Thyroarytenoid (TA) muscle**, not the cricoarytenoid. Injecting the cricoarytenoid would not effectively address the adductor spasms. * **Option B:** **Type I Thyroplasty** (Medialization) is used for vocal cord palsy (to move a cord to the midline). For ADSD, **Type II Thyroplasty** (Lateralization) is sometimes used to prevent the cords from meeting too tightly. * **Option D:** **Abductor Dysphonia** presents with a **breathy, whispering voice** due to spasms of the Posterior Cricoarytenoid (PCA) muscle, which pull the vocal folds apart during phonation. #### Clinical Pearls for NEET-PG * **Gold Standard Treatment:** Botulinum toxin injection into the **Thyroarytenoid muscle** (for Adductor type) or **Posterior Cricoarytenoid** (for Abductor type). * **Key Distinction:** Adductor = Strained/Croaky voice; Abductor = Breathy/Whispery voice. * **Task Specificity:** Symptoms often disappear during singing, whispering, or laughing, which is a classic diagnostic clue for spasmodic dysphonia. * **Diagnosis:** Confirmed via fiberoptic laryngoscopy showing "spasmodic" closures during speech.

Q: Which materials are used for injection thyroplasty?

All the above. **Explanation:** **Injection Thyroplasty** (also known as Injection Laryngoplasty) is a surgical procedure used to treat **unilateral vocal cord paralysis** or glottic insufficiency. The primary goal is to "bulk up" the paralyzed vocal fold, moving it toward the midline so the functioning fold can make contact, thereby improving voice quality and preventing aspiration. **Why "All the Above" is correct:** The choice of material depends on the desired duration of the effect (temporary vs. permanent) and biocompatibility. * **Collagen (Option A):** Bovine or human-derived collagen was one of the earliest materials used. It is typically used for temporary medialization as it eventually resorbs. * **Acellular Micronized Human Dermis (Option B):** Marketed under names like *Cymetra*, this is a processed human cadaveric tissue. It provides a scaffold for host cell ingrowth and lasts longer than simple collagen (approx. 6–12 months). * **Gelatin Powder/Sponge (Option C):** Often used in the form of *Gelfoam* paste, this is a short-acting, temporary material (lasting 4–6 weeks). It is ideal for patients where nerve recovery is expected or as a "trial" before permanent surgery. **High-Yield Clinical Pearls for NEET-PG:** * **Indications:** Unilateral vocal cord paralysis, vocal fold atrophy (presbyphonia), and vocal fold scarring. * **Other Materials:** **Teflon** (historical, now largely abandoned due to "Teflon granuloma"), **Hydroxyapatite** (Radiance/Radiesse - long-lasting), and **Autologous Fat** (requires a donor site). * **Type I Thyroplasty (Isshiki):** Unlike injection, this is a permanent "framework surgery" involving an external approach and a silastic/Gore-Tex implant. * **Key Contraindication:** Bilateral vocal cord paralysis (where the airway is the priority, not the voice).

Q: Key nob appearance is seen in which of the following conditions?

Phonasthenia. **Explanation:** **Phonasthenia** (also known as muscle tension dysphonia or vocal fatigue) is a condition characterized by weakness of the voice due to fatigue of the laryngeal muscles, particularly the **thyroarytenoid** and **interarytenoid** muscles. The characteristic **"Keyhole" appearance** (or Key-nob appearance) occurs during phonation. Due to the weakness of the interarytenoid muscle, the posterior part of the glottis fails to close completely, while the anterior part closes normally. This results in a triangular gap posteriorly and a linear gap anteriorly, resembling an old-fashioned keyhole. **Analysis of Incorrect Options:** * **Functional Aphonia:** Typically presents with a **"rectangular" or "oval" gap** during phonation because the vocal cords fail to adduct to the midline despite normal coughing (which proves physiological integrity). * **Puberphonia:** Characterized by a high-pitched voice in males post-puberty. On laryngoscopy, the vocal cords appear tense and thin, often with a **"mutational chink"** (posterior gap), but not the classic keyhole shape. * **Vocal Cord Paralysis:** Presents with the vocal cord fixed in a specific position (e.g., paramedian). The glottic gap is usually asymmetrical or longitudinal, depending on the nerve involved. **High-Yield Clinical Pearls for NEET-PG:** * **Phonasthenia** is common in professional voice users (teachers, singers). * **Bow-shaped (Bowing) of vocal cords:** Seen in Presbyphonia (aging) or Superior Laryngeal Nerve palsy. * **Hourglass appearance:** Seen in Vocal Nodules (Singer’s nodes) due to the contact of nodules at the junction of the anterior 1/3 and posterior 2/3 of the cords. * **Treatment for Phonasthenia:** Primarily involves voice rest and speech therapy; surgery is rarely indicated.

Q: For a case of puberphonia, which type of thyroplasty is typically used?

Type 3. **Explanation:** **Puberphonia** (mutational falsetto) is a functional voice disorder where a post-pubescent male continues to use a high-pitched pre-pubertal voice. The physiological basis of this high pitch is excessive tension in the vocal folds and a high position of the larynx. **Why Type 3 is Correct:** The goal of treating puberphonia (when speech therapy fails) is to **lower the vocal pitch**. This is achieved through **Type 3 Thyroplasty (Relaxation Thyroplasty)**. In this procedure, a vertical strip of thyroid cartilage is removed or the anterior commissure is pushed backward. This shortens the anteroposterior length of the vocal folds, reducing their tension and effectively lowering the fundamental frequency of the voice. **Analysis of Incorrect Options:** * **Type 1 (Medialization):** Used for unilateral vocal cord palsy. It pushes the vocal cord toward the midline to improve glottic closure. * **Type 2 (Lateralization):** Used for Adductor Spasmodic Dysphonia. It moves the vocal cords apart to prevent forceful over-approximation. * **Type 4 (Cricothyroid Approximation):** Used to **increase pitch** (e.g., in androphonia or male-to-female transgender surgery). It stretches the vocal folds, the opposite of what is needed for puberphonia. **High-Yield Clinical Pearls for NEET-PG:** * **First-line treatment:** Voice therapy (specifically **Gutzmann’s pressure test** or digital manipulation) is the primary treatment for puberphonia. * **Isshiki Classification:** This is the standard classification for thyroplasty (Framework Surgery). * **Type 3 Mechanism:** Think of it as "detuning" a guitar string by loosening it to produce a deeper sound.

Q: A 35-year-old male singer presents with complaints of hoarseness, vocal fatigue, and pain in the neck on prolonged phonation. Direct laryngoscopy shows bilateral pinhead-sized swellings on the anterior one-third and posterior two-thirds junction of the vocal cords. What is the probable diagnosis?

Vocal nodule. ### Explanation **1. Why Vocal Nodule is Correct:** Vocal nodules (Singer’s nodules) are the most common cause of persistent hoarseness in individuals who use their voices professionally. The clinical hallmark is **bilateral, symmetrical, pinhead-sized swellings** located at the **junction of the anterior 1/3 and posterior 2/3** of the vocal cords. This specific site corresponds to the point of maximum vibratory amplitude and mechanical trauma. Chronic vocal abuse leads to edema and fibrosis of the Reinke’s space, manifesting as these nodules. Symptoms typically include hoarseness, vocal fatigue, and "odynophonia" (pain on phonation). **2. Why Other Options are Incorrect:** * **Vocal Polyp:** These are usually **unilateral** and larger than nodules. They often follow a single episode of vocal trauma (e.g., shouting) causing a submucosal hemorrhage. * **Acute Laryngitis:** This presents with sudden onset hoarseness, fever, and cough, usually following a viral upper respiratory infection. Laryngoscopy would show diffuse erythema and edema of the cords, not localized nodules. * **Acute Pharyngitis:** This involves inflammation of the pharynx, presenting with sore throat and dysphagia rather than primary hoarseness or localized vocal cord pathology. **3. Clinical Pearls for NEET-PG:** * **Management:** The first line of treatment is **conservative (Voice Therapy)**. Surgery (Microlaryngeal surgery) is reserved only for large or recalcitrant nodules. * **Histopathology:** Nodules represent epithelial thickening and hyalinization of the stroma. * **Demographics:** Commonly seen in teachers, singers, and energetic male children ("Screamer’s nodules"). * **Positioning:** Remember the "Rule of 1/3": Junction of anterior 1/3 and posterior 2/3 is the classic site for nodules.

Q: A patient who is a teacher by profession presents to the clinic with hoarseness of voice. What is the most likely diagnosis for this patient?

Vocal nodule. ***Vocal nodules***- This is the most likely diagnosis as **vocal nodules** (or singer's nodules) are typically caused by chronic **vocal strain** and **misuse**, common in professions like teaching.- Nodules present as bilateral, symmetrical lesions at the junction of the anterior one-third and posterior two-thirds of the vocal cords, leading to persistent **hoarseness**.*Vocal polyp*- Usually presents as a **unilateral** mass and is often caused by a single acute instance of **vocal trauma** (e.g., screaming) or long-term irritants like smoking.- While causing hoarseness, polyps are less commonly associated with the chronic, bilateral lesions seen from professional voice abuse compared to nodules.*Vocal cyst*- These are retention cysts or epidermoid cysts, which are usually **unilateral** and are not primarily linked to the pathogenesis of professional voice overuse, although they can cause persistent hoarseness.- Cysts are formed when a mucus gland duct is blocked or when keratin builds up, and they are typically located sub-epithelially, appearing deeper than nodules.*Reinke's oedema*- This condition is almost exclusively associated with **heavy smoking** and is characterized by a gelatinous, bilateral swelling of the superficial lamina propria (*Reinke's space*).- While it causes severe hoarseness, the primary predisposing factor (smoking) is absent in the prompt, making nodules (vocal abuse) a more probable primary diagnosis based on the profession.

Q: Which of the following studies is shown below?

Stroboscopy. ***Stroboscopy*** - The image displays multiple sequential frames of the vocal cords during phonation, along with a corresponding **waveform analysis** of vowel production, which is characteristic of **videostroboscopy**. - This technique uses a flashing light synchronized with the vocal fold vibration to create a slow-motion effect, allowing detailed visualization of mucosal wave and vocal fold closure patterns. *Laryngoscopy* - **Laryngoscopy**, in its basic form, provides a direct view of the **larynx and vocal cords** but does not typically capture the rapid vibratory motion in slow motion. - While laryngoscopy is part of the stroboscopy procedure, the specific display of slow-motion vocal fold movement alongside a waveform indicates a more specialized technique. *Video laryngoscopy* - **Video laryngoscopy** (including devices like GlideScope) is a method used for **tracheal intubation**, which involves a laryngoscope with video capability for better visualization of the glottis during tube placement. - It is not a diagnostic imaging technique for assessing vocal fold function or vibratory patterns. *Cineangiography* - **Cineangiography** is a diagnostic procedure used to visualize **blood vessels** and blood flow within the body, typically associated with cardiovascular imaging. - It involves injecting a contrast agent and taking rapid X-ray sequences to create a moving picture of blood flow, which is entirely unrelated to vocal cord examination.

Q: A 20-year-old lady singer of a rock band develops diplophonia after a performance. The laryngoscopy image is shown below. What is the most likely diagnosis?

Vocal nodule. ***Vocal nodule*** - The image shows **bilateral, symmetrical swellings** at the junction of the anterior and middle third of the vocal cords, characteristic of **vocal nodules** also known as **singer's nodes**. - The patient's profession as a **singer** and the symptom of **diplophonia** (double voice) after a performance are classic presentations of vocal cord injury due to **vocal abuse**. *Vocal polyp* - A **vocal polyp** is typically **unilateral**, larger than a nodule, and can be sessile or pedunculated; it does not present as symmetric bilateral lesions. - While vocal polyps can also be caused by vocal abuse and lead to dysphonia, their distinct morphology differs from the symmetrical lesions seen. *Reinke edema* - **Reinke edema** (polypoid corditis) involves diffuse **edematous swelling** along the entire length of the membranous vocal folds, often associated with smoking and a deep, husky voice. - The visible lesions are localized, distinct, and bilateral, not a diffuse swelling of the vocal fold subepithelial space. *Contact ulcer* - **Contact ulcers** are lesions on the medial surface of the arytenoid cartilages, at the posterior third of the vocal cords, usually due to **acid reflux** or prolonged vocal abuse with hard glottal attacks. - The lesions in the image are located on the vibrating part of the vocal cords, not in the posterior cartilaginous portion.

Question 1

What is the recommended treatment for early vocal nodules?

Accepted Answer

Voice therapy

Answer

Excision

Answer

Laser Ablation

Answer

Tissue sampling followed by definitive therapy

Question 2

A 26-year-old female presents with a scratchy, croaky voice. Which of the following statements is true?

Accepted Answer

Adductor dysphonia is the underlying cause.

Answer

The best treatment is botulinum toxin injection into the cricoarytenoid muscle.

Answer

Type I thyroplasty can be used as a treatment.

Answer

Abductor dysphonia is the underlying cause.

Question 3

Voice produced by false vocal cords due to non-functioning of true cords is seen in which condition?

Accepted Answer

Dysphonia plica ventricularis

Answer

Spasmodic dysphonia

Answer

Puberophonia

Answer

Habitual dysphonia

Question 4

Which materials are used for injection thyroplasty?

Accepted Answer

All the above

Answer

Collagen

Answer

Acellular miconized human dermis

Answer

Gelatin powder

Question 5

Key nob appearance is seen in which of the following conditions?

Accepted Answer

Phonasthenia

Answer

Functional aphonia

Answer

Puberphonia

Answer

Vocal cord paralysis

Question 6

For a case of puberphonia, which type of thyroplasty is typically used?

Accepted Answer

Type 3

Answer

Type 1

Answer

Type 2

Answer

Type 4

Question 7

A 35-year-old male singer presents with complaints of hoarseness, vocal fatigue, and pain in the neck on prolonged phonation. Direct laryngoscopy shows bilateral pinhead-sized swellings on the anterior one-third and posterior two-thirds junction of the vocal cords. What is the probable diagnosis?

Accepted Answer

Vocal nodule

Answer

Vocal polyp

Answer

Acute laryngitis

Answer

Acute pharyngitis

Question 8

A patient who is a teacher by profession presents to the clinic with hoarseness of voice. What is the most likely diagnosis for this patient?

Accepted Answer

Vocal nodule

Answer

Vocal polyp

Answer

Vocal cyst

Answer

Reinke's oedema

Question 9

Which of the following studies is shown below?

Accepted Answer

Stroboscopy

Answer

Laryngoscopy

Answer

Video laryngoscopy

Answer

Cineangiography

Question 10

A 20-year-old lady singer of a rock band develops diplophonia after a performance. The laryngoscopy image is shown below. What is the most likely diagnosis?

Accepted Answer

Vocal nodule

Answer

Vocal polyp

Answer

Reinke edema

Answer

Contact ulcer

Phoniatrics and Voice Disorders — MCQs

Phoniatrics and Voice Disorders — MCQs

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