What is the most common causative organism of malignant otitis externa?

A 60-year-old male with a history of smoking presents with a new-onset neck mass and hoarseness. What is the most appropriate next step in diagnosis?

A 5-year-old presents with ear pain and fever. Physical exam reveals a red, bulging tympanic membrane, and the child is in significant distress. What is the most appropriate first-line treatment?

A 35-year-old woman presents with unilateral ear pain and hearing loss. On examination, the ear canal is edematous with purulent discharge, and there is pain with manipulation of the auricle. What is the most likely diagnosis?

Which of the following is the most common cause of sensorineural hearing loss in older adults?

What is the gold standard imaging modality for diagnosing acoustic neuroma?

A 60-year-old woman presents with progressive hearing loss and vertigo. MRI shows a tumor on cranial nerve VIII. Which condition does this describe?

A 45-year-old woman presents with a sensation of fullness in her right ear and decreased hearing. She has a history of allergic rhinitis. On examination, the tympanic membrane is retracted with no fluid noted behind the TM. What is the most likely diagnosis?

(Figure: Firm I) The type of firm depicted in the figure is a firm in a(n) _____ market.    

Which of the following is the primary mechanism for conductive hearing loss?