Chick is a 7 year old, no indoor only cat (last outdoor exposure years ago).  Has been hiding and crying, more lethargic than normal.  Owner was concerned because has been in litter box without producing anything, but hasn’t witnessed straining.  Does have a hx of cystitis previously, but has done well on a urinary diet.  Blood work – mild anemia (PCV 26%/TP 6.8, full CBC not performed), mild inc.

Chick is a 7 year old, no indoor only cat (last outdoor exposure years ago).  Has been hiding and crying, more lethargic than normal.  Owner was concerned because has been in litter box without producing anything, but hasn’t witnessed straining.  Does have a hx of cystitis previously, but has done well on a urinary diet.  Blood work – mild anemia (PCV 26%/TP 6.8, full CBC not performed), mild inc. in creat that resolved on fluids.  U/S mid abdominal cyst without communication with other organs within the mesentery.  Drained 15 mls – serosanguinous.  Cytology of mildly viscous fluid – erythrocytes and proteinacious background, no neoplastic or infectious cells.  UA showed mild to moderate amount of blood, but grossly normal color. (Bladder on ultrasound showed mildly thickened bladder and some suspended debris).  

Cyst is filling back up, so suspect will need explore and removal.  Thoughts?