A 73-Year-Old Man Comes to the Emergency Department Due to Right-Sided

A 73-year-old man comes to the emergency department due to right-sided weakness and difficulty speaking.  The patient woke up with the symptoms an hour before arriving but felt well when he went to bed last night.  He has a history of paroxysmal atrial fibrillation but is not adherent with medical therapy.  Temperature is 98.6 F (37 C) , blood pressure is 130/70 mm Hg, and pulse is 110/min and irregularly irregular.  Physical examination shows right-sided hemiplegia, hemisensory loss, and aphasia.  Despite appropriate treatment, the patient's symptoms fail to improve.  Over the next week, which of the following processes is most likely to occur in the affected brain region?

A) Accumulation of fibrin-like material in vessel walls
B) Formation of a necrotic focus surrounded by epithelioid macrophages
C) Deposition of fatty acid and calcium complexes
D) Hydrolytic enzyme-induced tissue digestion
E) Tissue necrosis with preservation of cellular architecture

Correct Answer:

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