TUESDAY TRIVIA ANSWER

This is an example of a sarcoid.  Sarcoids are the most commonly diagnosed tumor in horses and represent 20% of all tumors and almost 40% of skin tumors.  These tumors are thought to be caused by a bovine papillomavirus with an underlying genetic predisposition also possible.  These tumors can range from flat, hairless areas to large ulcerated masses anywhere on the body.  Treatment can be varied including but not limited to surgical removal, injectable chemotherapy, topical chemotherapy, and chemotherapy beads.  Unfortunately the majority of these tumors return and will require further treatment.  Below are a few more examples of how sarcoids can present.