Yes it is true. Or not true, depending on what you thought. St DIGITassa of PHALANGEville* is no more apocryphal than so many other saints whose stories I have related, and no less so. That is to say, I made her up on the occasion of April First.
I could become very fond of her, and perhaps she will catch on in hagiographic circles.
*As one of my sharper readers pointed out: Phalangeville? A town named after a finger bone??