I cannot tell you the type from here, because that reading depends on the actual images and the radiologist's description of size, wall, contents and blood flow rather than on a summary. What I can tell you is the general rule. Most simple, thin walled, fluid filled ovarian cysts are functional and resolve on their own over one to three cycles. Cysts with solid areas, thick walls or internal septations need proper assessment. Tablets, including hormonal pills, do not dissolve a cyst that already exists, though they can reduce the chance of new functional ones forming.
Next Steps
Please take the full MRI report and the images to a gynaecologist for review, along with any earlier scans so the size can be compared over time.
Health Tips
Sudden severe one sided pain, vomiting or fainting needs emergency assessment, as a cyst can twist or bleed.