This 7 year old horse presents with a slowly growing firm medial canthal mass. What might your differentials be and how would you determine which was correct?
Well top of my list would be a sarcoid, next another neoplasm with a lacrimal sac lesion further down the list. So I was surprised on performing a fine needle aspirate, to be able to draw of several mls of this clear brown fluid. The cyst (for that’s what I guess this is) slowly filled up over the few few hours. So now my question is, should we resect the cyst or can we inject a sclerosing fluid to adhere the walls of the collapsed cyst together?
