Abstract
Background: Ovarian granulosa cell tumors that originate from the sex cord-stromal cells represent 2% to 5% of all ovarian cancers. These tumors constitute two subgroups according to their clinical and histopathological features: juvenile granulosa cell tumors (JGCT) and adult granulosa cell tumors (AGCT). Granulosa cell tumor (GCT) is considered to be a low-grade malignancy with a favorable prognosis.
Methods: This case series includes four patients who were admitted to our university hospital and had an MRI examination within 5 years.
Results: The histopathological subtype of granulosa tumor was the adult type in 3 patients and juvenile type in 1 patient. Even though it is extremely rare, bone metastases were present in one of our patients. Liver metastases were also detected in one patient. The MRI examination of tumors revealed a heterogeneous solid mass that contained cystic components in 3 patients. In one of our patients, the tumor had a multiseptated cystic feature, and all of the tumors were ovoid or round with smooth margins. T1 signal hyperintensity, not suppressed on fat saturation sequences, was observed in 3 patients, which represents its hemorrhagic content.
Conclusion: Even though granulosa cell tumor shows a wide spectrum in terms of tumor appearance, some common findings have been shown and especially a hemorrhagic content could be a clue for us. The tumor is known to have a good prognosis, but it may have an unpredictable clinical course, so close follow-up is greatly important.
Keywords: Ovarian granulosa cell tumor, MRI, US, sex cord-stromal cells, juvenile granulosa cell tumors (JGCT), adult granulosa cell tumors (AGCT).
Graphical Abstract
[http://dx.doi.org/10.1177/1534735408322845] [PMID: 18815151]
[http://dx.doi.org/10.1007/s13193-012-0201-z] [PMID: 24426698]
[http://dx.doi.org/10.1200/JCO.2003.10.019] [PMID: 12637488]
[http://dx.doi.org/10.1007/s00261-007-9197-1] [PMID: 17624570]
[http://dx.doi.org/10.1006/gyno.1996.0078] [PMID: 8774662]
[http://dx.doi.org/10.1002/1097-0142(19850801)56:3<691::AID-CNCR2820560342>3.0.CO;2-Q] [PMID: 3891073]
[http://dx.doi.org/10.1016/j.ijscr.2015.05.004] [PMID: 25979613]
[http://dx.doi.org/10.1155/2018/4547892] [PMID: 29796312]
[http://dx.doi.org/10.1006/gyno.2001.6367] [PMID: 11606104]
[http://dx.doi.org/10.2214/ajr.172.5.10227493] [PMID: 10227493]
[http://dx.doi.org/10.1097/00004728-200209000-00016] [PMID: 12439311]
[http://dx.doi.org/10.1186/s13048-018-0416-x] [PMID: 29871662]
[http://dx.doi.org/10.1186/s13048-018-0474-0] [PMID: 30547828]
[http://dx.doi.org/10.1007/s00261-019-02172-3] [PMID: 31410505]
[http://dx.doi.org/10.1097/00004728-199711000-00028] [PMID: 9386298]
[http://dx.doi.org/10.1148/radiographics.16.1.200] [PMID: 10946701]
[http://dx.doi.org/10.1177/0284185119830280] [PMID: 30776906]