Page 436 - Atlas of Small Animal CT and MRI

426 Atlas of Small Animal CT and MRI

Figure 4.4.1 Peritoneopericardial Diaphragmatic Hernia (Feline) CT

(a) CT+C, SP (b) CT+C, SP (c) CT+C, DP
Adult MC Maine Coon with chronic cough and suspected peritoneopericardial diaphragmatic hernia based on previous thoracic
radiographs. Images a and b are at slightly different levels in the sagittal plane. Part of the liver is cranially displaced into the pericardial
sac, causing encroachment on, and cranial displacement of, the heart (a–c: arrow). The defect in the diaphragm (b: arrowheads) and
characteristic branching hepatic vasculature can be seen (a,c: arrowhead). Echocardiography confirmed the presence of herniated liver
in the pericardial sac.

Figure 4.4.2 Pericardial Effusion (Canine) CT

(a) CT+C, TP (b) CT+C, TP (c) CT+C, TP
11y FS Terrier cross with previously diagnosed pericardial effusion. A moderate volume of pericardial effusion is present, surrounded by
the uniformly thin, mildly contrast‐enhancing parietal pericardium (a–c: arrowheads). The heterogeneity of the heart is due to contrast‐
enhanced blood in the cardiac chambers. The average attenuation of pericardial fluid was approximately 12 HU both before and after
contrast administration. Cytologic analysis revealed the fluid to be a modified transudate.

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