The decomposed remains of an 85-year-old woman were discovered in a Queens home Wednesday approximately five months after she died, sources said.

The body of Erika Kraus-Breslin was found in the home in which she lived on 65th Street in Maspeth in the afternoon, according to law-enforcement sources.

The cause of death was not immediately known. The medical examiner will perform an autopsy to determine how she died and whether foul play was involved.

Cops were interviewing a 30-year-old grandson late Wednesday about her death.