WINNIPEG, Manitoba (AP) _ Juana Rosario of the Dominican Republic, winner of the women's high jump at the Pan American Games, has tested positive, a member of the games' sports organization told The Associated Press today.

The PASO member asked not to be identified and would not disclose any more details.

Rosario was quoted in the Dominican Republic as denying she used a banned steroid and said testing may have picked up a decongestant she used before the event.

``In six years in athletics, I have never used substances to enhance my performance,'' she said in remarks published today in the newspaper La Informacion.

Rosario, who won the gold medal with a leap of 6 feet, 4 inches, is the Dominican's only gold medalist at the games so far. The Dominican also has won one silver and one bronze medal.

A news conference was scheduled later today to announce the findings against Rosario.

This would be the second drug case at these games. The first was Steve Vezina, the goalkeeper for Canada's inline roller hockey team which beat the United States 7-6 in the title game. Canada was stripped of the gold and it was awarded to the United States.

If the Dominicans are stripped of Rosario's medal, Argentina's Solange Witteveen, the runner-up, would be awarded the gold. The silver then would go to Brazil's Luciane Dambacher and the bronze to Canada's Nicole Forrester.