"But you can't ride a horse." "I can ride old Walleye." "But he's got the swamp-cancer. He's dying, Daddy. He's nearly dead."
2010, Verlyn Klinkenborg, “The Vanishing Point”, in The Best American Series: 20 Short Stories and Essays, New York: Houghton Mifflin Harcourt, published 2012, page 115:
The horses—"brumbies," in Australian—stand hock-deep in water and develop swamp cancer: tumorlike, pustulant growths on their legs and bellies and noses.
