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A previously healthy two-year-old girl is brought to the clinic by her parents due to a 1-month history of difficulty walking. Her parents state that she began walking at 11 months old, but over the past month she has been falling more often. On physical exam, the patient demonstrates a broad-based gait and truncal ataxia. A CT scan of the brain is ordered and shows an intraparenchymal hyperdense mass in the cerebellum. She undergoes resection of the mass and a pathologic examination of the specimen shows anaplastic small round blue cells. What is the most likely diagnosis?
Identify the pathological abnormality shown in the image below.
An 83-year-old man presented with an acute onset of difficulty walking and nausea about 12 hours prior to being seen in the emergency room. Examination revealed vertigo and truncal ataxia. An MRI was performed to evaluate for stroke. The FLAIR axial MR image is shown below. What is the vascular territory damaged in the imaging provided?
A 13-year-old male with a recent history of acute disseminated encephalomyelitis (ADEM) presents to the clinic for post-hospital follow-up. He has made a near-complete recovery from his illness but his parents want to know what is his risk of recurrence. What is the most accurate statement you can share with the parents?
A 61-year-old male with a past medical history of GI cancer status post gastric resection at age 57, consequently on parenteral nutrition, presents to your clinic for a second opinion. He complains of slow movements and rigidity in his arms and legs that have slowly progressed over the last year. He denies tremors or cognitive change. He saw a different neurologist who started him on carbidopa/levodopa 6 months ago but the response has been minimal and he continues to get worse. You decide to perform a brain MRI and you see bilateral hyperintensity of the globus pallidi on the T1-weighted image. What treatment should you add?