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Identify the lesion shown in the imaging below:
A 27-year-old woman presents with recurrent episodes of tinnitus, vertigo, and hearing loss. She denies any associated headaches. Episodes typically last between 2 and 6 hours in duration. MRI of the brain with and without contrast did not reveal any pathology. Physical examination is unremarkable except for sensorineural hearing loss appreciated in the right ear. Which of the following is the most likely diagnosis?
A 38-year-old female presents for 5 weeks of worsening encephalopathy, and blurred vision. An MRI Brain with contrast is performed and shown below (T1 post-contrast, multiple axial sections). Of the following, what is the most likely diagnosis?
The electrographic pattern appreciated in the 6th second of this recording likely represents which of the following?
You are asked to see a 64-year-old man with hypertension, hyperlipidemia, and peripheral vascular disease who is post-operative day 1 from an aortic aneurysm repair. On exam, he exhibits bilateral lower extremity weakness, as well as loss of pain and temperature sensation below the umbilicus. Light touch and proprioception are intact in the lower extremities. What is the most likely diagnosis?
Neimann-Pick disease occurs due to a mutation of which of the following enzymes?
A 68-year-old man with an unknown past medical history presents with language difficulties. His spontaneous speech is non-fluent. He has anomia and difficulty following complex tasks, but intact repetition. A solitary lesion in which of the following regions can present with these symptoms?
An EMG/NCS is performed for the evaluation of subacute left upper extremity weakness in an adult female. There are fibrillation potentials in the deltoid and biceps on EMG and decreased median and radial sensory amplitudes on NCS. Which portion of the brachial plexus was injured?
A 3-year-old male with a history of attention-deficit/hyperactivity disorder (ADHD) and autism spectrum disorder (ASD) was referred to neurology by his PCP for concern of a genetic disorder. On examination, the patient appears to have a long face, large ears, and a prominent jaw. Genetic testing shows that the patient has a pathologic gene mutation with over 200 trinucleotide CGG repeats. Which of the following is a comorbidity appreciated in this patient’s neurologic syndrome?
Of the following, which extraocular muscle is not innervated by the oculomotor nerve?
A pediatric neurology consult was placed for a 5-day-old, full-term newborn with macrocephaly. When formally measured his head circumference was 46 cm. A tense fontanelle was appreciated on examination. A bedside ultrasound was performed and the only abnormality appreciated was significant hydrocephalus. What is the most likely etiology of the patient’s symptoms?
Which of the following findings is depicted in the catheter angiogram shown?
A 45-year-old patient presents with complaints of new-onset double vision. On the general neurologic exam, you note the patient tilts their head to the left. The remainder of the physical exam is unremarkable. Which of the following is the most common underlying pathologic cause of this issue?
An 11-year-old female presents with worsening stiffness. She had no complications while in utero or at birth, yet ever since she started kindergarten she noted to have stiffness in her feet and ankles, which worsens by the end of the day. She eventually started to notice modest stiffness in the legs and mild stiffness in the neck. She underwent physical therapy for this and remained stable. Over the last 2 years, however, the symptoms have been worsening. Which of the following next steps is most indicated?
A 40-year-old male presents with a one-day history of numbness of his right arm. This has never happened before, but he does report an episode of left leg weakness that self-resolved two years ago. The neurological examination confirms a sensory disturbance of his right arm. Sagittal MRI of the cervical spine is shown below (Left: T1, Middle: T1 with contrast, Right: T2). Which of the following is the most likely diagnosis?