Pack said Lathern, formerly of Robinson, wanted breast implants to try to save her seven-month marriage. Her husband, William Lathern, filed for an annulment the day she was arrested.
Robinson, near Waco, is about 100 miles south of Dallas.
Sheriff's officials and Trista Lathern's attorney didn't immediately return phone calls from The Associated Press on Friday.
The annulment petition says that William Lathern was unaware his wife didn't have cancer when they married April 18 or when a benefit was held at a restaurant/bar in August. He is seeking custody of their two boys, ages 5 and 3.
Trista Lathern's co-workers at the Army and Air Force Exchange Service gave up vacation time to Lathern because they thought she needed the time off while undergoing chemotherapy, said Judd Anstey, an exchange service spokesman in Dallas.
Phyllis Hubbard, spokeswoman for Susan G. Komen for the Cure in Waco, said she hoped the case would make donors more aware.
"Maybe this incident will be a red flag so they will do a little more investigating to see where their money and support are going to," Hubbard said.
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