Cheryl,
I just went to my search engine and entered the term POLYPOID, and of the numerous items that came up this was the first. I will paste it here for you to read, but realize it may not exactly mean what is referred to in your mother's report but may give you a general idea of its meaning.
• Urologic Pathology: Papillary/Polypoid Cystitis
Papillary/Polypoid Cystitis. Inflammatory lesions of the lamina propria, particularly when accompanied by much edema, will produce an irregular mucosal contour with broad-based or club-shaped surface ...
I think what might be referring to polypoid (this is a shape) is the broad based or club shaped surface.
I hope this is again something that helps, but more than this is a suggestion from me to do what I wrote that I did with the word of interest, and that is to enter the word into your search engine and see what it brings up. I usually have success in finding answers to things I'm not sure about, and they're not necessarily all medical questions.
Well, good luck in your search for understanding some of these strange words.
Lou