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This 87-year-old black male diabetic was admitted for amputation of the lower extremity involved by atherosclerotic gangrene and osteomyelitis. Following amputation, the patient's course was one of progressive deterioration. Laboratory studies immediately prior to death revealed a blood glucose of 840 mg/dL and a serum CO2 (bicarbonate) of 8.5 mmol/L.

== Images ==

File:IPLab6SenileAmyloidosis5.jpg|This is a special stain for amyloid (Luxol PAS) demonstrating the amyloid (1) and fibrosis (2) in the myocardium. The amyloid is darker purple/magenta and tends to be more amorphous. The fibrosis is pink and more fibrillar.

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== Study Questions ==