Background: A unique Case of metachronous contralateral cystadenoma diagnosed 2 years after a juvenile granulosa cell tumor (JGCT) of the ovary is reported.
Case: One year after a left ovariectomy for JGCT, a 7 year-old girl was found to have, during her standard ultrasound follow-up, a 18-mm cyst in the right ovary, which was initially considered to be a follicular cyst. Six months later, the mass appeared to be increased and characterized by multivacuolar features, and inhibin A was mildly elevated. A laparoscopic-assisted cystectomy was performed, sparing healthy ovarian tissue around. The pathology report showed a benign mucinous cystadenoma.
Keywords: Juvenile granulosa cell tumor; Laparoscopy; Metachronous ovarian tumors; Mucinous cystadenoma; Ovarian sparing surgery.
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