Pediatric Otolaryngology Practice Questions

Q: The ideal age for surgical correction of the condition shown in the image is:

6 years and above. ***6 years and above*** - Surgical correction (otoplasty) for **prominent ears (bat ears)** is ideally performed after the age of 6, as the ear reaches approximately **85-90% of its adult size** by this age. - Operating at or after this age allows for adequate structural development and ensures the child has better psychological readiness to cope with the procedure and postoperative care. *At birth* - Surgical intervention is not indicated at birth because maternal hormones like **estrogen** have a circulating effect that allows for **nonsurgical ear molding** (splinting) during the first few weeks of life. - If nonsurgical correction fails or is not attempted, surgery is then deferred until the ear cartilage matures. *1 year and above* - While the ear grows significantly during this period, operating this early is generally avoided due to the higher risk of **anesthesia complications** in infants. - Furthermore, the **cartilage is too soft and thin**, making it difficult to maintain the new shape after correction. *Anytime after adolescence* - There is no clinical mandate to wait until after adolescence; surgery can be safely performed anytime from age 6 through adulthood. - Waiting until after adolescence is often counterproductive, as the child may already have suffered years of **psychological distress** or teasing regarding their appearance.

Q: All are seen in Treacher Collins syndrome except?

Choanal atresia. **Explanation:** **Treacher Collins Syndrome (TCS)**, also known as **Mandibulofacial Dysostosis**, is an autosomal dominant disorder caused by mutations in the *TCOF1* gene. It results from the failure of migration of neural crest cells into the **first and second branchial arches**. **Why Choanal Atresia is the Correct Answer:** While TCS involves extensive craniofacial malformations, **Choanal atresia** is not a characteristic feature of this syndrome. Choanal atresia is more classically associated with **CHARGE syndrome** (Coloboma, Heart defects, Atresia choanae, Retardation, Genitourinary anomalies, and Ear abnormalities). **Analysis of Incorrect Options:** * **Conductive Deafness:** This is a hallmark of TCS. It occurs due to malformation of the ossicles (incus and malleus) and/or **meatal atresia** (narrowing or absence of the external auditory canal). * **Cleft Palate:** Approximately 30% of patients with TCS present with a cleft palate, often accompanied by macrostomia (large mouth). * **Mandibular Hypoplasia:** This is a defining feature. Patients exhibit a "bird-like" facies due to micrognathia (small jaw) and malar (cheekbone) hypoplasia. **High-Yield Clinical Pearls for NEET-PG:** * **Antimongoloid slant:** The eyes show a downward slant of the palpebral fissures. * **Coloboma:** Notch-like defects are typically seen in the **outer third of the lower eyelids**. * **Fish-mouth appearance:** Due to the combination of mandibular hypoplasia and macrostomia. * **Inheritance:** Autosomal Dominant (most common) but can be sporadic. * **Inner Ear:** Usually remains normal as it develops from the otic capsule, not the branchial arches.

Q: An 8-month-old infant presented with stridor and respiratory difficulty, which worsened on crying. Laryngoscopy revealed a red mass in the subglottic area. All the following are used in the treatment of this condition EXCEPT:

Radiotherapy. ### Explanation The clinical presentation of an 8-month-old with stridor and a red subglottic mass is classic for a **Subglottic Hemangioma**. This is the most common benign vascular neoplasm of the pediatric airway. **Why Radiotherapy is the Correct Answer (The "Except"):** Radiotherapy is **contraindicated** in the treatment of subglottic hemangioma. While it was historically used to shrink vascular masses, it is now strictly avoided due to the high risk of inducing secondary malignancies (like thyroid carcinoma) and causing permanent damage to the developing laryngeal cartilage and growth plates in infants. **Analysis of Other Options:** * **Corticosteroids:** Historically the first-line medical therapy, steroids help reduce the size of the hemangioma by inducing vasoconstriction and inhibiting angiogenesis. * **CO2 Laser Vaporization:** This is a surgical option used for small, localized, or pedunculated lesions. It allows for precise removal with minimal bleeding. * **Tracheostomy:** This is a life-saving procedure reserved for severe cases where the airway is critically compromised and medical or conservative surgical management fails. It secures the airway until the hemangioma naturally undergoes its involution phase. **High-Yield Clinical Pearls for NEET-PG:** * **Gold Standard Treatment:** Currently, **Oral Propranolol** (a non-selective beta-blocker) is the first-line treatment of choice for subglottic hemangiomas, replacing steroids in most protocols. * **Biphasic Nature:** These lesions typically follow a growth phase (proliferation) for the first 12–18 months, followed by a slow regression phase (involution). * **Association:** Approximately 50% of children with subglottic hemangiomas also have cutaneous "strawberry" hemangiomas, often in a "beard distribution." * **Diagnosis:** Definitive diagnosis is made via direct laryngoscopy and bronchoscopy. Biopsy is usually avoided due to the high risk of hemorrhage.

Q: Pierre Robin syndrome is characterized by which of the following features, or the absence thereof?

Coloboma of the iris. **Explanation:** **Pierre Robin Sequence (PRS)** is a clinical triad resulting from a developmental failure during embryogenesis. The primary defect is **mandibular hypoplasia** (micrognathia), which prevents the tongue from descending, leading to **glossoptosis** (posterior displacement of the tongue). This, in turn, prevents the palatal shelves from fusing, resulting in a **U-shaped cleft palate**. **Why "Coloboma of the iris" is the correct answer:** The question asks for a feature that is **not** part of the syndrome (or the absence thereof). **Coloboma of the iris** is a characteristic feature of **CHARGE syndrome**, not Pierre Robin Sequence. While PRS can be associated with ocular issues in syndromic forms (like Stickler syndrome), iris coloboma is not a defining or typical feature. **Analysis of Incorrect Options:** * **Mandibular hypoplasia (Option D):** This is the initiating event in the sequence. The small jaw is the hallmark physical finding. * **Respiratory distress (Option B):** This is a critical clinical manifestation. Glossoptosis causes upper airway obstruction, leading to inspiratory stridor and cyanotic spells, especially when the infant is supine. * **Hearing loss (Option A):** Children with PRS frequently have Eustachian tube dysfunction due to the cleft palate, leading to chronic otitis media with effusion and subsequent **conductive hearing loss**. **NEET-PG High-Yield Pearls:** * **Sequence vs. Syndrome:** It is called a "Sequence" because one initial insult (micrognathia) triggers a cascade of secondary events. * **Management:** The immediate priority is maintaining the airway. This is often achieved through **prone positioning**, nasopharyngeal airways, or, in severe cases, mandibular distraction osteogenesis or tracheostomy. * **Associated Syndrome:** The most common syndrome associated with PRS is **Stickler Syndrome** (look for high myopia and joint hypermobility in questions).

Q: What is the commonest organism causing acute epiglottitis?

Haemophilus influenzae. **Explanation:** Acute epiglottitis is a life-threatening medical emergency characterized by rapid-onset inflammation of the epiglottis and supraglottic structures [2]. **1. Why Haemophilus influenzae is correct:** Historically and currently, **Haemophilus influenzae type b (Hib)** is the most common causative organism. Although the incidence has significantly decreased in regions with high Hib vaccination rates, it remains the leading pathogen identified in acute cases [2]. It typically causes a severe, fulminant bacterial infection leading to the classic "cherry-red epiglottis." **2. Why the other options are incorrect:** * **Clostridium:** These are anaerobic bacilli primarily associated with tetanus, botulism, or gas gangrene; they do not cause acute supraglottic infections. * **Streptococcus pneumoniae:** While it is a common cause of pneumonia and otitis media, and can occasionally cause epiglottitis in vaccinated populations, it is less common than Hib. * **Respiratory Syncytial Virus (RSV):** This is the most common cause of **Bronchiolitis** and a frequent cause of Croup (Laryngotracheobronchitis), but epiglottitis is almost exclusively a bacterial, not viral, disease. **Clinical Pearls for NEET-PG:** * **Classic Presentation:** The "4 Ds"—Drooling, Dysphagia, Dysphonia, and Distress [1]. * **Positioning:** The child often assumes the **"Tripod position"** (leaning forward on hands) to maintain the airway. * **X-ray Finding:** Lateral neck X-ray shows the **"Thumb sign"** (swollen epiglottis) [1]. * **Management:** The priority is **airway maintenance** (intubation or tracheostomy) [1]. Never examine the throat with a tongue depressor in a non-controlled setting, as it may trigger fatal laryngospasm [1].

Q: Adenoidectomy with grommet insertion is the treatment of choice for which of the following conditions?

Serous otitis media in children. **Explanation:** **1. Why Option A is Correct:** Serous Otitis Media (SOM), also known as Otitis Media with Effusion (OME), in children is primarily caused by **Eustachian tube dysfunction**. Hypertrophied adenoids contribute to this by either mechanically obstructing the Eustachian tube orifice or acting as a reservoir for infection (biofilms) leading to ascending inflammation. * **Grommet insertion (Myringotomy with ventilation tube):** Provides immediate ventilation to the middle ear, bypassing the blocked Eustachian tube and clearing the effusion. * **Adenoidectomy:** Addresses the root cause in children by removing the obstructive tissue and the source of chronic infection. The combination is the gold standard for recurrent or persistent SOM in the pediatric population. **2. Why Other Options are Incorrect:** * **Option B (SOM in adults):** In adults, SOM is often secondary to viral infections or barotrauma. However, unilateral SOM in an adult is a "red flag" for **Nasopharyngeal Carcinoma (NPC)**. Adenoidectomy is not a routine treatment; the focus is on ruling out malignancy. * **Option C (Adenoiditis):** Simple adenoiditis is initially managed medically with antibiotics. Adenoidectomy is indicated only if it becomes chronic or causes obstructive symptoms, but it does not require grommet insertion unless there is secondary middle ear involvement. **3. NEET-PG High-Yield Pearls:** * **Most common cause of hearing loss in children:** Serous Otitis Media. * **Type of hearing loss:** Conductive Hearing Loss (CHL). * **Tympanometry finding:** B-type curve (Flat curve). * **Otoscopy:** Dull, retracted TM with restricted mobility; "Oil-drop" appearance or air-fluid levels may be seen. * **Indications for Adenoidectomy in SOM:** Children >4 years old, or younger children with significant nasal obstruction or recurrent infections.

Q: What is the most common cause of congenital sensorineural hearing loss?

Cytomegalovirus (CMV). **Explanation:** **Congenital Sensorineural Hearing Loss (SNHL)** is most frequently caused by non-genetic, infectious factors belonging to the TORCH group. **Why Cytomegalovirus (CMV) is the correct answer:** CMV is currently the **most common non-genetic cause** of congenital SNHL worldwide. It is unique because hearing loss can be present at birth or have a **delayed onset**, and it is often **fluctuating or progressive** in nature. Even "asymptomatic" neonates (those without classic signs like petechiae or microcephaly) can develop significant SNHL later in childhood, making it a high-priority screening target. **Analysis of Incorrect Options:** * **Rubella:** Historically, Rubella was a leading cause (associated with the "classic triad" of cataracts, heart defects, and SNHL). However, due to widespread **MMR vaccination**, its incidence has drastically declined. * **Toxoplasmosis:** While part of the TORCH spectrum and capable of causing SNHL, it more characteristically presents with the triad of chorioretinitis, hydrocephalus, and intracranial calcifications. It is less common than CMV. * **Parvovirus B19:** This typically causes *Erythema Infectiosum* (Fifth disease) or hydrops fetalis; it is not a standard cause of congenital SNHL. **Clinical Pearls for NEET-PG:** * **Most common genetic cause:** Mutations in the **GJB2 gene** (encoding the protein **Connexin 26**). * **CMV Diagnosis:** Best confirmed by PCR of saliva or urine within the **first 3 weeks** of life. * **Management:** Oral Valganciclovir may be used in symptomatic neonates to improve audiologic outcomes. * **Jervell and Lange-Nielsen Syndrome:** A high-yield syndromic SNHL associated with **prolonged QT interval** and sudden death.

Q: A 5-year-old boy, while having dinner, suddenly develops phonation difficulty and stridor, and is brought to the casualty department with complaints of respiratory distress. What is the most appropriate immediate management?

Heimlich maneuver. ### Explanation **Correct Option: D. Heimlich maneuver** **Medical Concept:** The clinical presentation of sudden onset respiratory distress, stridor, and phonation difficulty (aphonia or muffled voice) while eating is a classic hallmark of **Foreign Body Aspiration (FBA)** causing acute upper airway obstruction. In a conscious child with signs of complete or near-complete airway obstruction (inability to speak or cough effectively), the **Heimlich maneuver (subdiaphragmatic abdominal thrusts)** is the gold-standard immediate life-saving intervention. It increases intrathoracic pressure to "pop" the foreign body out of the larynx or trachea. **Analysis of Incorrect Options:** * **A & B (Cricothyroidotomy and Tracheostomy):** These are invasive surgical airways. While they are used in "cannot intubate, cannot oxygenate" scenarios, they are not the first-line treatment for a choking child in a casualty setting. The Heimlich maneuver is non-invasive, faster, and often curative for supraglottic or glottic obstructions. * **C (Humidifier):** Humidification is used for inflammatory conditions like Croup (Laryngotracheobronchitis). It has no role in relieving a mechanical obstruction caused by a foreign body. **Clinical Pearls for NEET-PG:** 1. **Age-Specific Maneuvers:** For infants (<1 year), use **5 back blows and 5 chest thrusts**. The Heimlich maneuver is contraindicated in infants due to the risk of abdominal organ injury. 2. **Chevalier Jackson’s Diagnostic Triad for FBA:** Wheezing, coughing, and diminished breath sounds. 3. **Gold Standard Investigation:** For a stable patient with suspected FBA, **Rigid Bronchoscopy** is both the diagnostic and therapeutic procedure of choice. 4. **Radiology:** The most common finding on a chest X-ray is **obstructive emphysema** (air trapping) on the affected side, though most foreign bodies are radiolucent.

Q: What is a recognized cause of stridor in a newborn?

All are true. **Explanation:** Stridor in a newborn is a high-pitched sound resulting from turbulent airflow through a partially obstructed airway. It can be caused by congenital anomalies affecting the supraglottis, glottis, subglottis, or trachea. * **Laryngomalacia (Option C):** This is the **most common cause** of congenital stridor. It is characterized by the collapse of supraglottic structures (like the epiglottis and arytenoids) during inspiration due to tissue flaccidity. The stridor is typically inspiratory and worsens when the infant is supine or crying. * **Vascular Ring (Option B):** This represents an extrinsic cause of stridor. Congenital vascular anomalies (e.g., double aortic arch) encircle and compress the trachea and esophagus. This often results in **biphasic stridor** and may be associated with "dying spells" during feeding. * **Cystic Hygroma (Option A):** This is a benign congenital malformation of the lymphatic system, usually occurring in the posterior triangle of the neck. Large cystic hygromas can cause extrinsic compression of the larynx or trachea, leading to respiratory distress and stridor at birth. Since all three conditions are recognized etiologies of neonatal airway obstruction, **Option D** is the correct answer. **High-Yield Clinical Pearls for NEET-PG:** * **Laryngomalacia:** Characterized by an **Omega-shaped epiglottis**. Stridor usually appears at 2 weeks of age and improves by 18–24 months. * **Subglottic Stenosis:** The most common cause of stridor requiring tracheostomy in infants. * **Laryngeal Web:** Most commonly occurs at the level of the glottis; presents with a weak or absent cry since birth. * **Choanal Atresia:** Presents with cyclic cyanosis (blue when quiet, pink when crying).

Question 1

The ideal age for surgical correction of the condition shown in the image is:

Accepted Answer

6 years and above

Answer

At birth

Answer

1 year and above

Answer

Anytime after adolescence

Question 2

All are seen in Treacher Collins syndrome except?

Accepted Answer

Choanal atresia

Answer

Conductive deafness

Answer

Cleft palate

Answer

Mandibular hypoplasia

Question 3

Which of the following statements are true about pediatric tracheostomy?

Accepted Answer

The 3rd and 4th tracheal rings are incised.

Answer

Most common early complication is subcutaneous emphysema.

Answer

It is easy to remove the tracheostomy tube.

Answer

A complete tracheal ring is removed.

Question 4

An 8-month-old infant presented with stridor and respiratory difficulty, which worsened on crying. Laryngoscopy revealed a red mass in the subglottic area. All the following are used in the treatment of this condition EXCEPT:

Accepted Answer

Radiotherapy

Answer

CO2 laser vaporization

Answer

Corticosteroids

Answer

Tracheostomy

Question 5

Pierre Robin syndrome is characterized by which of the following features, or the absence thereof?

Accepted Answer

Coloboma of the iris

Answer

Hearing loss

Answer

Respiratory distress

Answer

Mandibular hypoplasia

Question 6

What is the commonest organism causing acute epiglottitis?

Accepted Answer

Haemophilus influenzae

Answer

Clostridium

Answer

Streptococcus pneumoniae

Answer

Respiratory Syncytial Virus (RSV)

Question 7

Adenoidectomy with grommet insertion is the treatment of choice for which of the following conditions?

Accepted Answer

Serous otitis media in children

Answer

Serous otitis media in adults

Answer

Adenoiditis in children

Answer

All of the above

Question 8

What is the most common cause of congenital sensorineural hearing loss?

Accepted Answer

Cytomegalovirus (CMV)

Answer

Parvovirus

Answer

Rubella

Answer

Toxoplasmosis

Question 9

A 5-year-old boy, while having dinner, suddenly develops phonation difficulty and stridor, and is brought to the casualty department with complaints of respiratory distress. What is the most appropriate immediate management?

Accepted Answer

Heimlich maneuver

Answer

Cricothyroidotomy

Answer

Tracheostomy

Answer

Humidifier

Question 10

What is a recognized cause of stridor in a newborn?

Accepted Answer

All are true

Answer

Cystic hygroma

Answer

Vascular ring

Answer

Laryngomalacia

Pediatric Otolaryngology — MCQs

Pediatric Otolaryngology — MCQs

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