A Clinical Case from the Archives : 12/12/2006

This bay minature shetland pony has a rather unusual piebald lesion in her eye! What might it be and what treatment should be employed?

Well, coming out of the cornea and limbus as it was I really suspected this would be a squamous cell carcinoma. But after we resected it and performed cryosurgery on the underlying tissue, our pathologists read it out as a papilloma as you can see here. So what’s the difference histopathologically between the SCC and papilloma then? Being a simple chap I liked the explanation from Kathy, one of our pathologists: the SCC grows into the corneal tissue while the papilloma grows out! I’m sure its more complicated than that but an easy answer like that was fine for me!


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