An enlarged mesenteric lymph node was removed from the abdomen of a 64 year old man at autopsy after he died in a motor vehicle accident.A representative section is shown in the accompanying photomicrograph.Which one of the following is the best diagnosis? 
Definitions:
Fish In The Ocean
A term referring to the natural aquatic resources found in oceans, which can include various types of fish and sea life considered as potential food sources or ecological assets.
Private Goods
Goods that are rivalrous and excludable, meaning one person's consumption prevents another's.
Club Goods
Goods that are excludable but non-rival in consumption, meaning they can have restricted access but one person's use does not diminish availability to others.
Prevented
Describes a situation or action that has been stopped or hindered from occurring, often through intervention or precautionary measures.
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