Kidney size and texture can be evaluated easily by ultrasound when renomegaly
According to Soto  it is proven that bacteria are the cause of epithelial hyperplasia in gills, splenomegaly, renomegaly
and necrosis in internal organs, mainly in spleen, heart, liver, kidney, brain and musculature.
There were significantly more patients with renomegaly
and increased renal echogenicity than those patients with normal-sized kidneys and increased renal echogenicity (53.
Diffuse, bilateral renomegaly
was present, and the kidneys were diffusely tan-white on the serosal surface and throughout the parenchyma.
At necropsy, renal coccidiosis was associated with miliary white streaks and foci through the kidneys, renomegaly
, and renal pallor or congestion.
Gross lesions identified at postmortem examination included cardiomegaly, hepatomegaly, splenomegaly, and renomegaly
, along with generalized pallor of these tissues, as well as perihepatic effusion, ascites, pericardial effusion, epicardial petechiation, and subcutaneous hemorrhages.
The differential diagnosis included myopathy, lower motor neuron disease, peripheral neuropathy, neuromuscular disease, peripheral vascular disease, renomegaly
, systemic disease with general weakness, metabolic derangement, and arthritis.
The cranial pole of the renal-gonadal shadow was enlarged and bulbous on the lateral projection, which suggests either renomegaly
Necropsy findings in the Harris hawk and both eagle owls included hepatomegaly, splenomegaly, renomegaly
, as well as proventricular and ventricular dilation, ulceration, and erythema (Fig 1).