Renal gas has recently been described without apparent clinical significance in mass-stranded dolphins.

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Urinary calculi are seen with some frequency among captive dolphins and sporadically in free -ranging pinnipeds.



Hepatic lipidosis, characterized by a hyperechogenic liver that is hyperattenuating, is shown and was diagnosed in a stranded and malnourished  pilot whale.



Ultrasound can be very useful for evaluating the pleural space and peripheral lung. Lung lesions extending to the visceral pleura can often be identified.