– 9 year old Golden Retriever referred for pleural effusion

– History of cough 3 weeks prior that responded to doxycycline and prednisolone

– Represented as emergency collapsed with large volume pleural effusion

– Cardiac chamber size and function normal on echo. Mild/insignificant aortic insufficiency.

– Abnormal tissue at right heart base, I think it is lung but cannot separate from heart base

– 9 year old Golden Retriever referred for pleural effusion

– History of cough 3 weeks prior that responded to doxycycline and prednisolone

– Represented as emergency collapsed with large volume pleural effusion

– Cardiac chamber size and function normal on echo. Mild/insignificant aortic insufficiency.

– Abnormal tissue at right heart base, I think it is lung but cannot separate from heart base

– Irregular contour with hyperechoic speckles within – could this be an abscess or mineralised tumour? And if mass/tumour, extending from heart or lung? Also concerned about thickening at right atrial and right ventricular border, is this just fat?

– Pleural effusion was haemorrhagic and cloudy, not malodorous, sent for analysis.

– No abdominal effusion, spleen normal.