Facial Nerve

A 35-year-old woman presents with sudden-onset unilateral facial weakness, inability to close the right eye, and drooping of the right corner of the mouth. On examination, the forehead wrinkles are absent on the right side. What is the most common cause of this presentation?

A 38-year-old woman from Mumbai presents 3 days after delivery with sudden-onset right facial drooping. She cannot close her right eye completely, and her mouth droops to the left. Examination reveals weakness of all muscles of facial expression on the right, including the forehead. She reports loss of taste on the anterior 2/3 of her right tongue. Otoscopy is normal. MRI brain is unremarkable. Which branch of the facial nerve is most likely affected?

Regarding the anatomy and course of the facial nerve (CN VII), all of the following statements are correct EXCEPT:

A 52-year-old man presents with acute right-sided facial paralysis, loss of taste on the anterior two-thirds of the tongue, and hyperacusis (sensitivity to loud sounds). Imaging rules out stroke. Regarding the anatomical basis of his symptoms, all of the following are true EXCEPT:

A 38-year-old woman presents to the emergency department with acute onset left-sided facial drooping, inability to close the left eye, and loss of taste on the anterior two-thirds of the tongue. Examination reveals hyperacusis on the left side. She denies recent trauma, fever, or otologic symptoms. MRI brain is normal. What is the most appropriate next step in management?