CASE 1

Kindly provided by Nicky Parry of Tufts Veterinary School.

HISTORY
A one year old, castrated male, domestic shorthaired cat presented following a 10 day history of lethargy, anorexia, decreased water consumption and appearing uncomfortable.

Initial bloodwork revealed hypoalbuminaemia, leuocytosis, and neutrophilia. He tested negative for FeLV and FIV. On initial presentation he was quiet, alert, and responsive and had pale mucous membranes.  He had a distended abdomen and a fluid wave was detected. 

Abdominocentesis yielded a yellow viscous fluid with a total protein of 4.6 g/dl and nucleated cell count of 2500 cells/µl with 90% segmented neutrophils. The cat was euthanised due to a poor prognosis, and a postmortem examination was performed. 

Gross findings were most prominent in the abdomen (see attached photograph).

Describe the gross lesions

Give a morphologic diagnosis

What is the cause of these lesions?

What are the histologic features of this lesion?

Click here to see the answer.

Image of gross appearance