Hope, an abandoned dog, was found with her mouth taped shut and her tongue hanging out.
Vets said it had been exposed for at least 24 hours and was so swollen that most of it will need to be removed.
Deep wounds covered her battered body, some deep enough to cause muscle damage, taking 100 stitches to close.
The pug-mix dog was first spotted on Monday morning on Baker Road in Weatherford, Texas, where extreme temperatures have soared above 90 degrees.
She was wandering around clearly terrified and in severe pain, having been savagely beaten and tortured.
Someone had wrenched out her tongue before wrapping heavy-duty electrical tape around her snout.