A 15-year-old girl is being assessed for recurring occurrences of focal onset seizures that have progressed to bilateral tonic-clonic seizures in recent months. She has also experienced severe headaches that have kept her from going to school. The patient has no previous medical history. The exhibit depicts an MRI of the brain. Which of the following histopathological findings are most likely present in the abnormal lesion?

Question

A 15-year-old girl is being assessed for recurring occurrences of focal onset seizures that have progressed to bilateral tonic-clonic seizures in recent months. She has also experienced severe headaches that have kept her from going to school. The patient has no previous medical history. The exhibit depicts an MRI of the brain.  Which of the following histopathological findings are most likely present in the abnormal lesion?

Quizplus · Accepted Answer

Eductional Objective: Cerebral arteriovenous malformations (AVMs) are vascular anomalies defined histologically by a tangle of aberrant vasculature that includes big veins with thickened walls and irregular arteries. AVMs can cause cerebral bleeding, headaches, and seizures. Atypical vasculature with a "bag of worms" look and many dark flow gaps are radiologic findings.

A 15-Year-Old Girl Is Being Assessed for Recurring Occurrences of Focal