There is no set time frame.
Are you sure you are even talking about cancer or just a cyst? they are not the same thing.
With stage 3 ovarian cancer between 2 and 5 women out of 10 survive more than 5 years with treatment.
Once you have survived more than 5 years with any type of cancer it becomes more difficult to predict outcomes as too many other factors associated with living and aging (accidents, heart attacks, etc) affect the data for it to be reliable.
There is still a possibility she could live to 100.
Her longevity can be increased to a decade. Here is the remedy.
CANCER/HIV PREVENTION & Cure:--
1. Beware of Cancer Symptoms: Sudden loss of weight/stamina, anemia, unbearable pains in any organ despite medication, neuralgia, getting extremely tired for a little or no work, loss of appetite, unhealed wound in any part of the body for years together, chronic constipation, chronic hemorrhages, etc. Cancer may affect from any organ to any organ[s]/system[s].
The symptoms cited---------an offshoot of blocked energy + accumulated toxins in Thyroid & Parathyroid, lymphatic system, Gonads, Spleen,hormonal imbalance with a displaced solar plexus
‘Target Therapy’ [Acupressure Techniques & Indian Natural Remedies] proved to be effective for all types of cancer [including brain tumors, leukemia, melanoma, Crohn’s Disease, breast cancer, etc., ] & all the most dreaded and incurable diseases.
TARGET THERAPY* It is the God-given therapy communicated to the mankind through THE RIGVEDA, one of the Hindu scriptures.
Target Therapy---Acupressure Techniques & Indian Natural Remedies, [comprising Ayurveda, Homeopathy, Bio-chemic salts, Herbal Remedies, Yoga/Meditation, Magneto-therapy, Sidha, etc.,] U can have sizable & perceivable relief in 45-90 days. @ no/affordable costs, No side effects, and No Hospitalization.
Dr.Vora designed it in such a way that the costs are the least for the survival/rescue of common man and the poor in villages, towns and metropolis on the globe; with NO insurance cover. It is most suitable to all the youngsters on this entire globe.
U may study it, discuss with Ur family members/friends/acquaintances and slowly and steadily implement it for the best results.
•No side effects and no risk. If it clicks, mostly possible, U shall have a cure. Lest, the therapy keep mum. No extra risk. It is the most suitable line of treatment even for the terminally ill patients. Cancer cure/prevention is quite possible. U may try it for any incurable disease including cancer of any organ[s], post-surgical recurrence of tumors, Leukemia, HIV/AIDS, Crohn’s Syndrome, Gilbert’s Syndrome, colon cancer, Thalassemia, Muscular Dystrophy, Autism, bone TB., Tinnitus, all brain & spinal cord disorders, CLL, Crohn’s Syndrome, endometriosis, etc., ---it should aim @  steps.
1. Removal of toxins from all internal organs & purging through Normal Drainage systems, feces, urine, menses [females], skin, lungs.
• 2. Activating all the internal organs to make each & every organ to function up to optimum levels.
3. Supplying vitamins, nutrients, micro-nutrients, minerals, trace elements for invigorating the entire Immune system to produce antibodies.
PS. If satisfied/benefited with, inform others to browse 'Yahoo Answers’ on any health issue.
Source: ‘HEALTH IN UR HANDS’ [Vol.I & II] available in all Indian Languages all over the globe] by Dr.Devendra Vora, DSc.,MD.,FRCP.,---an octogenarian & the pioneer in Acupressure in India.
Dr.Vora, the world renowned Acupressurist, an octogenarian and the Bhishma Pithamaha of acupressure in India--- treated and caused to treat more than 150000 cases of Cancer, HIV/AIDS, Diabetes, irregular menses and also many other most dreaded diseases.