skin neoplasia

What exactly does this mean? I put it in google and the first thing that came up was cancer UK

Is it definitely cancerous?

Neoplasms can be benign

Neoplasia means abnormal cell growth, but does not always indicate a malignancy.

Yep - in humans, technically moles and skin tags are types of skin neoplasia, but they aren't normally dangerous or cancerous, so it's not necessarily a term to worry about.

Going to speak from the point of view of a medical student so perhaps you can disregard this! Yep a neoplasm is something where the cells start misbehaving really, not acting the way they are supposed to. It essentially means "new growth" so you can get a mass of cells. These "tumours" can be benign which means they are localised and essentially non-dangerous or malignant i.e. cancerous which means they could spread and cause all the problems associated with cancer. If this is something your rabbit has you probably ought to keep a good eye on it; if it changes, grows or starts to bleed/ulcerate/seems painful you should get them to the vet asap. The thing with neoplasms is that this "cell dysplasia" can progress into something a little nastier but that is certainly not the rule but this will have been why your google searches came up with cancer uk. In people neoplasms are often removed (but again, not always) even if benign to prevent the risk of any future problems. If your vet has checked your bun out and not decided on any surgery it probably means the risks of surgery outweigh its potential benefits which I guess is a good thing

Hope that was a help and if I can make it clearer let me know!