MSD Manual

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Psittacine proventricular dilatation syndrome, gross lesions, macaw
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Psittacine proventricular dilatation syndrome, gross lesions, macaw

    Psittacine proventricular dilatation disease, gross lesions, in a blue and gold macaw. Note the enlarged size of the graying proventriculus and ventriculus. Normally, the proventriculus would not be larger than the liver.

Courtesy of Dr. Louise Bauck.