The autopsy

examination of the heart of a 58-year-old man revealed marked ventricular

enlargement. However, in his past medical history there was no congenital,

valvular, or coronary artery disease.  In

addition, no hypertensive disease was previously diagnosed. The

histopathological examination identified perinuclear brown deposits within the

cardiomyocytes in the routine H&E stain; the deposits were shown to

represent iron accumulation, and finally a diagnosis of haemochromatosis was

made.

Which type of

cardiomyopathy is most likely associated with this condition?