what's the diagnosis?

28yr/f patient with rt ovarian cyst 4x4cm. CA125: 46units. HPE images.

35yr/F, rt ovarian cyst measuring 5.5X4cm, unilocular

today 4th lscs done in case of previous 3 lscs + breech+ low lying placenta+sever PET since 2 months+ 12*12cm ovarian cyst on left side+ obese pt(wt.95 kg.).after lscs cyst removal done and bilateral tubectomy done.2.4 kg live baby and mother vitally well.

The huge ovarian serous cystadenoma from the previous case with the ruler given for comparison! It’s hard to believe this was discovered in a 16-year-old female. An ovarian cyst is a sac filled with liquid or semiliquid material that arises in an ovary. Such cysts can be broadly classified as either functional or neoplastic. Neoplastic ovarian cysts can be either benign or malignant. This picture shows a large benign serous cystadenoma of an ovary at the time of surgery. This type of tumor is at the benign end of the spectrum of ovarian serous tumors and is generally asymptomatic, and if symptoms are present, they are usually related to mass effect with displacement of adjacent structures, e.g. loops of bowel, adnexal torsion. They are composed of unilocular (or at times multilocular) cysts filled with clear watery fluid. Most cysts measure 10 cm in average diameter, but may be extremely large. This one measured 30cm!

53 y female hysterectomy specimen. large multilocular complex cyst in adnexa no solid areas contains serous fluid around 10cm. Cyst is located adjoining right ovary