Had surgery & discharge summary says : cyst drained with wide bore needle attached to suction (oschner needle not available at adh) - some leakage of cyst fluid into sponge surrounding incision, possible small leakage intra-abdominally. is it safe?

If there was a small amount of fluid that leaked into the abdomen it will be absorbed so, yes, this is safe. If you have any significant abdominal pain, call the doctor who performed the procedure. Feel better soon! Good luck to you!

Depends on the organ in which the cyst was and the size and kind of of the cyst. You should ask the surgeon to explain findings and treatment