1. HEART: MILD, CHRONIC, MULTIFOCAL, LYMPHOCYTIC, HISTIOCYTIC MYOCARDITIS WITH MYOCYTE DEGENERATION
2. ADIPOSE TISSUE (EPICARDIUM): MODERATE, CHRONIC, ATROPHY
CASE COMMENT: Cardiomyopathy is seen occasionally and spontaneously in guinea pigs. The cause is unknown. In this case, there were slightly more inflammatory cells than are typically seen in myocardial degeneration, and an infection is possible. There was no direct evidence of infection in sections of the heart, and it is unknown if this animal had multisystemic lesions. This animal had slight reduction in nutritional status."
This result indicates that Elisee was dealing with a cardiomyopathy, or an abnormality within the muscles of her heart. This can lead to abnormalities in conduction of the electrical impulses that cause her heart to beat and can lead to a buildup of fluid within the lungs when the blood is not able to be pumped appropriately. Heart disease is an ultimately progressive and fatal condition, and based on these findings humane euthanasia was definitely the most kind and compassionate choice for Elisee in her state.