Published: 2021-09-28

Immature teratoma with a rare finding of choroid plexus

Mehak Kashyap, Neelam Gupta, Vikas Dubey, Nechal Kaur


Mature cystic teratoma of the ovary is the most common ovarian tumour in young women. Immature teratoma is a very rare tumour, representing only 1% of all ovarian cancers. Paediatric ovarian tumours are rare, with a reported incidence rate of 2.2/100,000 in girls aged 0 to 15 years. In the case report presented here, was 12-year-old suspected to have serous cystadenoma of ovary based on CT scan, which was ultimately diagnosed with immature teratoma grade 3 after histopathological examination was done.


Immature teratoma, Ovary, Choroid plexus

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Nishida M, Kawano Y, Yuge A, Nasu K, Matsumoto H, Narahara H. Three cases of immature teratoma diagnosed after laparoscopic operation. Clinical medicine insights: case reports. 2014;7:CCRep-S17455.

Mremi A, Rwenyagila D, Chilonga K, Sadiq A, Msuya D, Lodhia J. Immature teratoma of the ovary in a 1 year and 9-month-old child: a case report and review of the literature. Journal of Surgical Case Reports. 2021;2021(1):rjaa609.

Shinkai T, Masumoto K, Chiba F, Shirane K, Tanaka Y, Aiyoshi T, et al. Pediatric ovarian immature teratoma: Histological grading and clinical characteristics. Journal of pediatric surgery. 2020;55(4):707-10.

Gallion H, van Nagell Jr JR, Donaldson ES, Hanson MB, Powell DF. Immature teratoma of the ovary. American journal of obstetrics and gynecology. 1983;146(4):361-5.

Alwazzan AB, Popowich S, Dean E, Robinson C, Lotocki R, Altman AD. Pure immature teratoma of the ovary in adults: thirty-year experience of a single tertiary care center. International Journal of Gynecologic Cancer. 2015;25(9):1-7.

Deodhar KK, Suryawanshi P, Shah M, Rekhi B, Chinoy RF. Immature teratoma of the ovary: A clinicopathological study of 28 cases. Indian J Pathol Microbiol 2011;54:730-5.

Terada T. Immature teratoma of ovary composed largely of choroid plexus. Int J Gynecol Cancer. 2010;20(6):1101-2.

Kawai M, Kano T, Furuhashi Y, Iwata M, Nakashima N, Imai N, et al. Immature teratoma of the ovary. Gynecologic oncology. 1991;40(2):133-7.