Cardiovascular Pathology - Case 2 - Part 4
   

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 The autopsy revealed that the patient had developed pneumonia as the immediate cause of death despite negative premortem cultures. Two additional areas of ulceration in the bowel were found and the surgical anastomotic site in the bowel was intact.

Cecum with ulcers
Anastomotic site of bowel
Mesenteric arteries with EVG stain to show elastica
 
Necrotic left great toe and second toe
Microscopic view of edge of toe ulcer
Kidney with marked deformity from multiple infarctions
Renal arteries
View of disrupted elastica

Heart:

Coronary artery
Coronary artery
Intramyocardial artery
Aorta and kidneys; the aorta is not affected

1. Are the autopsy findings consistent with polyarteritis nodosa?

2. What vessels are involved in this disorder?

3. What other vasculitides may present like this patient?