"Medical condition" keeps Ayla Reynolds' mother from completing lie detector test

Trista Reynolds with her missing daughter, Ayla
Trista Reynolds with her daughter Ayla in an undated photo.

(CBS/AP) PORTLAND, Maine - The mother of missing toddler Ayla Reynolds says she was unable to complete a polygraph test on Thursday because of a "medical condition."

Pictures: Ayla Reynolds missing

Trista Reynolds said in a message posted on a website dedicated to finding her 1-year-old daughter that she started taking a polygraph test yesterday but was told by the test administrator that she could not finish because of the undisclosed condition.

Reynolds had previously said she wanted to take a polygraph and reveal the results. Meanwhile,  Justin DiPietro, the little girl's father, previously took a polygraph but has not yet released the results. DiPietro and Trista Reynolds do not live together.

Trista Reynolds said she would be willing to complete the test after treatment by a doctor, but wrote that investigators were "content with the general outcome of the incomplete test."

Ayla Reynolds has been missing since December 17. She was last seen in her bedroom at her father's home. She was was wearing pajamas with the words " Daddy's Princess" on them and had a cast on her broken left arm before she vanished.

Investigators have searched an icy river and woods near DiPietro's home for signs of Reynolds but the case is ongoing.

Complete coverage of Ayla Reynolds on Crimesider