Sydney woman missing for a week

Fears are held for the welfare of a Sydney woman who hasn't been seen for a week.

Police say 59-year-old Juliana Duojuan Zhu was last seen by a friend at an inner-city shopping centre in Broadway on April 12.

She's described as being of Asian appearance, about 150-155cm tall, with black hair and a slim build.

Concerns are held for her welfare as she suffers from a medical condition that requires medication.