A 16-year-old kid who was previously healthy is examined for chronic headaches and impaired vision that began some months ago. Upon awakening in the morning, the headaches are more intense and frequently come with nausea and vomiting. He doesn't use cigarettes, alcohol, prescription pills, or illegal substances. Bilateral papilledema is noticeable on physical examination. The exhibit displays an MRI scan of the brain. This patient's brain lesion most likely originated from which of the following cells?

Question

A 16-year-old kid who was previously healthy is examined for chronic headaches and impaired vision that began some months ago. Upon awakening in the morning, the headaches are more intense and frequently come with nausea and vomiting. He doesn't use cigarettes, alcohol, prescription pills, or illegal substances. Bilateral papilledema is noticeable on physical examination. The exhibit displays an MRI scan of the brain.  This patient's brain lesion most likely originated from which of the following cells?

Quizplus · Accepted Answer

Eductional Objective: Ependymomas originate from the ependymal cells that line the ventricular system and the central canal of the spinal cord.  Ventricular ependymomas can block the flow of cerebrospinal fluid through the interventricular foramina, causing signs of increased intracranial pressure (eg, headache, papilledema) due to obstructive (noncommunicating) hydrocephalus.

A 16-Year-Old Kid Who Was Previously Healthy Is Examined for Chronic