CASPER, Wyo. (AP) — A judge has sentenced a woman to prison for failing to pay restitution handed down to her for exaggerating her son's illness for financial gain.

Krishelle Layton three years ago was ordered to pay just over $5,100, but paid back just $40.

A judge on Tuesday sentenced her to prison for 18 to 30 months and ordered Layton to pay back the remaining money. A felony conviction for obtaining property under false pretenses was added to her record.

Layton in 2013 said her son had a growing, inoperable tumor. Casper police named him chief for a day and people raised money for his family. A Wyoming group later learned that Layton had exaggerated her son's medical condition.

Layton did not admit guilt, but agreed prosecutors had enough evidence to convict her.