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1.The report suggest there is was a
cyst / simple / functional in the left ovary.
2. Which is seen reducing in size - usually due to the
hormonal treatment what you where taking.
3.In further scan the measurement mentioned was ovary size - suggest there is no cyst any more.
4.Lastly the hypo echoic in the scan with measurements can be a dominant follicle.
5.In this case, there is no harm in discontinuing, but if clinically indicated need to get a followup scan.
Good luck.
Hope i have answered your query,
any thing to ask ? do not hesitate to ask.
http://doctor.healthcaremagic.com/doctors/dr-ganesh/62888