![A therapy dog who has become a Boston Marathon fixture is recovering after undergoing a second surgery to remove a tumor. Spencer](https://abc17news.b-cdn.net/abc17news.com/2021/12/S179340405-300-375x225.jpg)
Therapy dog who loves Boston Marathon recovering from second tumor removal surgery
By Nathalie Pozo Click here for updates on this story HOLLISTON, Massachusetts (WCVB) — A therapy dog who has become a Boston Marathon fixture is recovering after undergoing a second surgery to remove a tumor. Spencer, a 12-year-old golden retriever, has become a welcome sight for many Boston Marathon runners. No matter the weather on
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