Bochdalek hernia 3cm in50yr old female any treatment?

Yes: This type of hernia as with all types of diaphragmatic hernia can be effectively treated laparoscopically. It is relatively small and may be able to be repaired primarily. However, reinforcement with a prosthetic of synthetic mesh or biological soft tissue matrix may be indicated.

Depends: These types of congenital diaphragm hernias are commonly seen on abdominal ct scans done for other reasons, and are usually not dangerous, as they have typically been present for many years, cause no symptoms, and only contain a small amount fat so are not at risk to become strangulated. Large hernias are a different story, and may need surgical repair by a experienced general or thoracic surgeon.

Depends: True bochdalek hernias are congenital, and so you've managed to live 50+ yrs with it. Specially on rt side and containing only fat, you can live with it. On left, it is likely to keep growing and repairs are easier when smaller and done electively.