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Questions and Answers
What is one possible consequence of osteomyelitis in Malignant Otitis Externa?
What is one possible consequence of osteomyelitis in Malignant Otitis Externa?
Lower cranial nerve palsy can occur in Malignant Otitis Externa due to infection extension.
Lower cranial nerve palsy can occur in Malignant Otitis Externa due to infection extension.
True
What type of imaging is commonly used to assess the extent of infection in Malignant Otitis Externa?
What type of imaging is commonly used to assess the extent of infection in Malignant Otitis Externa?
CT Scan
The systemic antibiotic used for treating Malignant Otitis Externa is ______________.
The systemic antibiotic used for treating Malignant Otitis Externa is ______________.
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Match the following investigation techniques for Malignant Otitis Externa with their purpose:
Match the following investigation techniques for Malignant Otitis Externa with their purpose:
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What is a primary symptom of Ramsay-Hunt Syndrome?
What is a primary symptom of Ramsay-Hunt Syndrome?
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Bullous Myringitis is characterized by vesicles filled with pus on the eardrum.
Bullous Myringitis is characterized by vesicles filled with pus on the eardrum.
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What fungus is commonly associated with Otomycosis?
What fungus is commonly associated with Otomycosis?
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Otitis Externa is the inflammation of the external __________ canal.
Otitis Externa is the inflammation of the external __________ canal.
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Match the types of Otitis Externa with their descriptions:
Match the types of Otitis Externa with their descriptions:
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Which treatment is NOT typically used for Otomycosis?
Which treatment is NOT typically used for Otomycosis?
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Herpes Simplex associated with Otitis Externa primarily causes deafness.
Herpes Simplex associated with Otitis Externa primarily causes deafness.
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What is the primary treatment for Ramsay-Hunt Syndrome?
What is the primary treatment for Ramsay-Hunt Syndrome?
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What is the primary cause of Localized Otitis Externa (Furuncle)?
What is the primary cause of Localized Otitis Externa (Furuncle)?
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Deafness can occur if the EAC is obstructed by the infection.
Deafness can occur if the EAC is obstructed by the infection.
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What is one predisposing factor for Localized Otitis Externa (Furuncle)?
What is one predisposing factor for Localized Otitis Externa (Furuncle)?
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The treatment for Localized Otitis Externa includes administering _____ and analgesics for pain relief.
The treatment for Localized Otitis Externa includes administering _____ and analgesics for pain relief.
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Which of the following should be avoided when treating a furuncle in Otitis Externa?
Which of the following should be avoided when treating a furuncle in Otitis Externa?
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Match the conditions with their definitions:
Match the conditions with their definitions:
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One predisposing factor of Diffuse Otitis Externa is _____ of the EAC.
One predisposing factor of Diffuse Otitis Externa is _____ of the EAC.
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What is the purpose of checking blood sugar levels in recurrent cases of Localized Otitis Externa?
What is the purpose of checking blood sugar levels in recurrent cases of Localized Otitis Externa?
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What is one of the primary symptoms of Diffuse Otitis Externa (OE)?
What is one of the primary symptoms of Diffuse Otitis Externa (OE)?
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The primary causative organism for Malignant Otitis Externa is Escherichia coli.
The primary causative organism for Malignant Otitis Externa is Escherichia coli.
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What treatment is used locally for Diffuse Otitis Externa to reduce swelling?
What treatment is used locally for Diffuse Otitis Externa to reduce swelling?
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Malignant Otitis Externa is also known as ______.
Malignant Otitis Externa is also known as ______.
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Which of the following is a predisposing factor for Malignant Otitis Externa?
Which of the following is a predisposing factor for Malignant Otitis Externa?
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Match the following conditions with their symptoms:
Match the following conditions with their symptoms:
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Both Diffuse Otitis Externa and Malignant Otitis Externa can cause deafness if the ear canal becomes obstructed.
Both Diffuse Otitis Externa and Malignant Otitis Externa can cause deafness if the ear canal becomes obstructed.
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What is a common clinical sign observed with Diffuse Otitis Externa when pulling the auricle?
What is a common clinical sign observed with Diffuse Otitis Externa when pulling the auricle?
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Study Notes
Otitis Externa (OE)
- Otitis externa is inflammation of the external auditory canal (EAC) caused by viral, fungal, or bacterial infection.
- Two main types of viral OE:
- Herpes simplex: Characterized by vesicles and often accompanied by fever.
- Herpes zoster (Ramsay-Hunt): Characterized by painful vesicles, otalgia (ear pain), facial paralysis (7th cranial nerve involvement), and sensorineural hearing loss (SNHL) with vertigo (8th cranial nerve involvement).
- Ramsay-Hunt Syndrome treatment: Analgesics and acyclovir (locally and systemically).
- Bullous myringitis involves blisters (bullae) filled with fluid on the eardrum (tympanic membrane).
- Bullous myringitis treatment: Analgesics and antibiotics to prevent secondary infections.
Otomycosis
- Fungal infection of the external auditory canal (EAC), often caused by Aspergillus Niger and Candida albicans.
- Common symptoms: itching in the EAC, deafness (if EAC is obstructed by fungal growth).
- Treatment: local cleaning using suction, antifungal ear drops (e.g., nystatin), or packing with antifungal cream if resistant.
Bacterial Otitis Externa
- Localized (Furuncle): Infection of a hair follicle, commonly in the outer third of the EAC.
- Predisposing factors: Diabetes.
- Symptoms: pain worsening with chewing, scanty pus-like discharge.
- Diffuse: Entire EAC inflammation.
- Predisposing factors: scratching, swimming in infected pools, seborrhea, diabetes.
- Symptoms: pain worsening with chewing, scanty purulent discharge, potential deafness if EAC is swollen.
- Malignant OE: Severe form, potentially involving skull base osteomyelitis.
Diffuse Otitis Externa (OE)
- Diffuse OE involves inflammation of the entire external auditory canal (EAC).
- Predisposing factors: scratching, swimming in infected pools, seborrhea, diabetes.
- Symptoms: pain worsening with chewing, scanty purulent discharge, potential deafness if EAC is swollen.
- Treatment: antibiotics, analgesics, local cleaning, potential packing with antibiotics/steroids.
Malignant Otitis Externa (MOE)
- Severe form extending to the skull base, potentially causing osteomyelitis.
- Causative organism: Pseudomonas aeruginosa.
- Predisposing factors: low immunity (e.g., diabetes).
- Symptoms similar to diffuse OE but more intense pain, prolonged pain, deeply seated, possible facial nerve palsy.
- Investigations: culture and sensitivity, blood sugar test, CT scan, gallium/technetium bone scans.
- Treatment: hospitalization, systemic antibiotics (quinolones), local cleaning, local antibiotics (ciprofloxacin drops), and possibly surgical debridement.
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Description
This quiz covers the key aspects of Otitis Externa and Otomycosis, including symptoms, causes, and treatments. Focused on the types of infections and their management, it provides a comprehensive overview for students in healthcare. Test your knowledge on these important topics in otology.
