Diseases of the Ear Practice Questions

Q: A 4-year-old child presents with difficulty hearing and frequent ear infections. An otoscopic examination reveals fluid in the middle ear without signs of acute infection. What is the most likely diagnosis?

Otitis media with effusion. ***Otitis media with effusion*** - The presence of **fluid in the middle ear** without signs of acute infection (e.g., fever, ear pain, bulging tympanic membrane) is characteristic of otitis media with effusion (OME). - This condition is a common cause of **hearing difficulty** and recurrent ear infections in children due to impaired Eustachian tube function. *Acute otitis media* - This diagnosis requires signs of **acute inflammation** and infection, such as ear pain, fever, and a **bulging, erythematous tympanic membrane**, which are absent in this case. - The fluid in acute otitis media is typically purulent and associated with more acute symptoms. *Otitis externa* - **Otitis externa** involves inflammation or infection of the **external ear canal**, often referred to as "swimmer's ear." - Symptoms typically include **ear pain**, itching, and discharge from the ear canal, and the tympanic membrane is usually normal. *Cholesteatoma* - A **cholesteatoma** is an abnormal, **non-cancerous skin growth** that develops in the middle ear, behind the eardrum. - While it can cause hearing loss and recurrent infections, it is characterized by a **retraction pocket** or **perforation** with **squamous debris**, which is not described here.

Q: A 60-year-old male presents with unilateral conductive hearing loss and a pearly white mass behind the tympanic membrane. What is the most likely diagnosis?

Cholesteatoma. ***Cholesteatoma*** - A **pearly white mass** behind an intact tympanic membrane, along with **unilateral conductive hearing loss**, is characteristic of a cholesteatoma. - Cholesteatomas are **destructive epithelial cysts** that can erode ossicles and bone, leading to progressive hearing loss and potential complications. *Otitis media with effusion* - This typically presents with a **dull, retracted tympanic membrane** and a **serous or mucoid effusion**, not a pearly white mass. - While it causes **conductive hearing loss**, it lacks the specific visual hallmark of a cholesteatoma. *Tympanosclerosis* - Characterized by **white plaques** on the tympanic membrane due to hyalinization and calcification, often after recurrent otitis media. - These plaques are usually **superficial** and do not present as a distinct mass *behind* the eardrum. *Foreign body* - A foreign body behind the tympanic membrane is **rare** and would typically be visible as an object, not a pearly white mass. - The history would likely include a clear event of foreign body insertion, which is not mentioned here.

Q: A 4-year-old child presents with a history of recurrent ear infections, poor school performance, and behavioral problems. Audiometry confirms bilateral conductive hearing loss. What is the most likely diagnosis?

Otitis media with effusion. ***Otitis media with effusion*** - **Recurrent ear infections** and **bilateral conductive hearing loss** in a child are classic signs of otitis media with effusion, often leading to **poor school performance** and **behavioral problems** due to impaired communication. - The effusion in the middle ear dampens sound transmission, causing **conductive hearing loss**. *Otosclerosis* - This condition is characterized by **abnormal bone growth** in the middle ear, leading to **progressive conductive hearing loss**, but it typically affects **adults**, not children. - It usually presents with a gradual onset of hearing loss and **tinnitus**, without a history of recurrent infections. *Congenital hearing loss* - While it causes **bilateral hearing loss**, it is present **from birth** and would likely be identified earlier during newborn screening or developmental milestones. - It is not typically associated with a history of **recurrent ear infections** or poor school performance as a presenting symptom in a 4-year-old in this manner. *Acute otitis media* - This involves an **acute bacterial or viral infection** of the middle ear, causing symptoms like **fever**, **ear pain**, and temporary hearing loss. - While recurrent episodes can lead to OME, **acute otitis media** itself describes a transient, painful infection, not the chronic effusion and associated developmental issues described.

Q: A patient undergoes tympanometry and is found to have a Type B tympanogram. What is the most likely underlying condition?

Middle ear effusion. ***Middle ear effusion*** - A **Type B tympanogram** indicates a flat line with no compliance peak, suggesting fluid filling the middle ear space. - This pattern is characteristic of **middle ear effusion**, where sound transmission is significantly impaired by the fluid. *Chronic suppurative otitis media* - While it involves fluid, **chronic suppurative otitis media** typically presents with a **perforated tympanic membrane**, which would alter the tympanogram significantly (often a large volume type B or unreadable). - The primary characteristic of cSOM is **otorrhea** through a perforation, not just fluid accumulation behind an intact drum. *Acute otitis media* - **Acute otitis media** can cause a Type B tympanogram due to middle ear effusion, but the question asks for the *most likely* underlying condition. - While it involves effusion, the term **middle ear effusion** directly describes the state causing the Type B curve, whereas AOM is an infection leading to that state and may also present with pain, fever, and bulging eardrum. *Tympanic membrane retraction* - **Tympanic membrane retraction** (negative middle ear pressure) is typically associated with a **Type C tympanogram**, showing a peak shifted to the negative pressure side. - Retraction indicates abnormal Eustachian tube function but not necessarily fluid fill, which would flatten the curve.

Q: What is the most common cause of conductive hearing loss in children?

Otitis media with effusion. ***Otitis media with effusion*** - **Otitis media with effusion** (OME), also known as **glue ear**, is the most common cause of conductive hearing loss in children due to fluid accumulation in the middle ear. - This fluid impedes the transmission of sound waves to the inner ear, resulting in temporary hearing impairment. *Otosclerosis* - **Otosclerosis** is a condition where abnormal bone growth in the middle ear, particularly around the stapes, impairs sound transmission. - It typically affects **adults** and usually presents with progressive hearing loss; it is rare in childhood. *Cholesteatoma* - A **cholesteatoma** is an abnormal, noncancerous skin growth that can develop in the middle ear or mastoid bone, gradually eroding the bone and causing hearing loss. - While it can occur in children, it is **less common** than otitis media with effusion as a primary cause of conductive hearing loss. *Acoustic neuroma* - An **acoustic neuroma** (vestibular schwannoma) is a benign tumor that grows on the vestibulocochlear nerve (cranial nerve VIII), affecting balance and hearing. - It primarily causes **sensorineural hearing loss** and is extremely rare in children.

Q: A 3-year-old child presents with severe otalgia, fever of 39.5°C for 2 days, and bulging tympanic membrane. What is the primary treatment for this acute otitis media?

Antibiotics. ***Antibiotics*** - **Antibiotics** are the primary treatment for **severe acute otitis media (AOM)** with high fever (≥39°C), severe otalgia, or bilateral disease in young children. - Common pathogens include *Streptococcus pneumoniae*, *Haemophilus influenzae*, and *Moraxella catarrhalis*. - First-line therapy is **high-dose amoxicillin** (80-90 mg/kg/day); **amoxicillin-clavulanate** if amoxicillin failure or recent antibiotic use. - Prompt treatment in severe cases prevents complications like **mastoiditis**, **meningitis**, and **hearing loss**. *Antiviral medication* - **Antiviral medications** are ineffective against AOM, which is primarily a **bacterial infection**. - While viral URTIs may precede AOM, the middle ear infection itself requires antibacterial therapy in severe cases. *Steroids* - **Steroids** reduce inflammation but do not address the underlying **bacterial infection**. - No role as primary treatment; may be considered as adjunct in specific cases with severe inflammation. *Observation only* - **Watchful waiting** (observation with analgesics) is appropriate for **non-severe AOM** in children >6 months with: - Unilateral AOM without severe symptoms - Mild otalgia and fever <39°C - Reliable follow-up available - However, in **severe AOM** with high fever and severe pain (as in this case), **immediate antibiotics** are indicated per AAP guidelines.

Q: A 35-year-old patient presents with recurrent otitis media. Tympanometry reveals a type B tympanogram. What is the best management option?

Myringotomy with tube placement. ***Myringotomy with tube placement*** - A type B tympanogram indicates greatly reduced or no **tympanic membrane (TM) mobility**, signifying **middle ear effusion** or **perforation**. Recurrent otitis media in this context suggests persistent middle ear fluid, for which **myringotomy with tube placement** is the definitive treatment to drain fluid and ventilate the middle ear. - This procedure prevents further fluid accumulation, reduces the frequency of acute otitis media episodes, and helps improve hearing. *Surgical consultation for ossicular chain* - While ossicular chain problems can cause hearing loss, they typically do not present with **recurrent otitis media** or a **type B tympanogram** indicating fluid. Ossicular issues are more likely to present with a **Type As tympanogram** (stiff ossicles) or a **Type Ad tympanogram** (disarticulation). - Investigating the ossicular chain would be indicated if other causes were ruled out or if conductive hearing loss persists after middle ear fluid resolution. *Topical antibiotics for perforation* - Topical antibiotics are used to treat active **infections in cases of tympanic membrane perforation** but do not address the underlying Eustachian tube dysfunction or persistent middle ear fluid that leads to recurrent otitis media. - A type B tympanogram could indicate a perforation if volume is large, but the primary issue in recurrent OM is typically fluid, not just the perforation itself. *Decongestants for Eustachian dysfunction* - **Decongestants** are sometimes used for **Eustachian tube dysfunction** but have limited efficacy in cases of recurrent otitis media with established middle ear effusion, especially in adults. - Their primary role is to reduce nasal congestion, which can indirectly help Eustachian tube function, but they don't directly resolve persistent fluid.

Q: Pink reflex through intact tympanic membrane in active otosclerosis is known as

Schwartz sign. ***Schwartz sign*** - The **Schwartz sign** (also known as the **flaming or pink tympanum sign**) is a reddish hue visible through the tympanic membrane. - It is caused by **hyperemia** (increased blood flow) to the promontory's mucosa, indicating active, vascularized otosclerotic foci. *Schwabach's test* - This is a **tuning fork test** that compares the patient's bone conduction with the examiner's. - It assesses **sensorineural hearing loss** but does not involve direct visualization of the tympanic membrane. *Lyre's phenomenon* - This term is **not typically associated** with otosclerosis or ear examination findings. - It appears to be a **distractor** and does not describe any known clinical sign in otology. *Chvostek's reflex* - This is a **clinical sign of hypocalcemia**, characterized by twitching of the facial muscles when tapping the facial nerve. - It is **neurological in nature** and unrelated to ear pathology or otosclerosis.

Q: Which of the following statements about serous otitis media is false?

Type C tympanogram. ***Type C tympanogram*** (FALSE statement) - A **Type C tympanogram** indicates **negative middle ear pressure**, which suggests **eustachian tube dysfunction** or early/resolution phase, but is **NOT the characteristic finding** in active serous otitis media with persistent fluid. - In serous otitis media with established fluid, a **Type B tympanogram** (flat) is the typical finding, indicating limited or no tympanic membrane mobility due to fluid behind the drum. - Type C may be seen in early eustachian tube dysfunction before fluid accumulates, or during resolution, but not in established glue ear. *Also called glue ear* (TRUE statement) - Serous otitis media is indeed commonly referred to as **"glue ear"** due to the thick, viscous fluid that accumulates in the middle ear space. - This term highlights the characteristic consistency of the effusion, which can significantly impair hearing. *Affect school going children* (TRUE statement) - **School-going children** are highly susceptible to serous otitis media, with peak prevalence between **2 and 6 years of age**. - Contributing factors include developing **eustachian tube anatomy**, frequent upper respiratory infections, and adenoid hypertrophy. *Fluid in middle ear* (TRUE statement) - The defining characteristic of serous otitis media is the presence of **non-purulent fluid** in the middle ear space. - This fluid accumulates due to **eustachian tube dysfunction**, leading to negative pressure and transudation of fluid.

Question 1

A 4-year-old child presents with difficulty hearing and frequent ear infections. An otoscopic examination reveals fluid in the middle ear without signs of acute infection. What is the most likely diagnosis?

Accepted Answer

Otitis media with effusion

Answer

Acute otitis media

Answer

Otitis externa

Answer

Cholesteatoma

Question 2

A 60-year-old male presents with unilateral conductive hearing loss and a pearly white mass behind the tympanic membrane. What is the most likely diagnosis?

Accepted Answer

Cholesteatoma

Answer

Otitis media with effusion

Answer

Tympanosclerosis

Answer

Foreign body

Question 3

A 4-year-old child presents with a history of recurrent ear infections, poor school performance, and behavioral problems. Audiometry confirms bilateral conductive hearing loss. What is the most likely diagnosis?

Accepted Answer

Otitis media with effusion

Answer

Otosclerosis

Answer

Congenital hearing loss

Answer

Acute otitis media

Question 4

A patient undergoes tympanometry and is found to have a Type B tympanogram. What is the most likely underlying condition?

Accepted Answer

Middle ear effusion

Answer

Chronic suppurative otitis media

Answer

Acute otitis media

Answer

Tympanic membrane retraction

Question 5

What is the most common cause of conductive hearing loss in children?

Accepted Answer

Otitis media with effusion

Answer

Otosclerosis

Answer

Cholesteatoma

Answer

Acoustic neuroma

Question 6

A 3-year-old child presents with severe otalgia, fever of 39.5°C for 2 days, and bulging tympanic membrane. What is the primary treatment for this acute otitis media?

Accepted Answer

Antibiotics

Answer

Antiviral medication

Answer

Steroids

Answer

Observation only

Question 7

A 35-year-old patient presents with recurrent otitis media. Tympanometry reveals a type B tympanogram. What is the best management option?

Accepted Answer

Myringotomy with tube placement

Answer

Surgical consultation for ossicular chain

Answer

Topical antibiotics for perforation

Answer

Decongestants for Eustachian dysfunction

Question 8

Pink reflex through intact tympanic membrane in active otosclerosis is known as

Accepted Answer

Schwartz sign

Answer

Schwabach's test

Answer

Lyre's phenomenon

Answer

Chvostek's reflex

Question 9

A 10 year old child presents with painless, non-foul-smelling purulent discharge from the ear. Patient reports that he is able to hear better in the presence of discharge than when the ear is dry. The most probable diagnosis is

Accepted Answer

Chronic suppurative otitis media (CSOM) with tympanic membrane perforation

Answer

Otitis media with effusion

Answer

Mastoiditis with pain and swelling

Answer

Cholesteatoma with foul-smelling discharge

Question 10

Which of the following statements about serous otitis media is false?

Accepted Answer

Type C tympanogram

Answer

Affect school going children

Answer

Also called glue ear

Answer

Fluid in middle ear

Diseases of the Ear — MCQs

Diseases of the Ear — MCQs

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