Monodermal teratoma: Three case reports and review of literature

Table 1 Clinical characteristics

Case number	Sex/Age	Tumor location	Symptoms	Tumor marker	Hyperthyroidism	Maximum tumor diameter in cm	Form	Boundary
1	M/14	Right testis	Testicular mass	Normal	No	1.5	Roundness	Clear
2	F/40	Right ovary	Hypomenorrhea	Normal	No	4.6	Ellipsoid	Clear
3	F/49	Left ovary	Unspecific	CA125, HPV51 (+)	No	7.0	Ellipsoid	Clear

CA125: Cancer antigen 125; F: Female; M: Male; HPV51: Human papillomavirus type 51.

Table 2 Features of ovarian monodermal teratoma in previously reported cases

Number [Ref.]	Year	Age	Tumor location	Ascites	Tumor marker	Transfer	Maximum tumor diameter in cm	Treatment	Recrudescence
1[31]	2023	45	Left ovary	No	CA125 (+)	No	11	Tumor resection	No
2[32]	2023	58	Right ovary	Yes	CA125 (+)	No	15	Tumor resection	No
3[21]	2023	16	Right ovary	No	CA125 (+)	No	35	Tumor resection	No
4[18]	2022	37	Right ovary	Yes	CA125 (+)	No	13	Right adnexectomy	No
5[33]	2022	49,66	Right ovary, Left ovary	Yes	CA125 (+)	No	6.1, 20	Hysterectomy and right salpingo-oophorectomy, Left salpingo-oophorectomy	No
6[34]	2022	38	Left ovary	Yes	CA125 (+)	Bone metastases	3.4	Resection of left ovarian tumor	Recurrence 4 yr after surgery
7[35]	2022	40	Left ovary	Yes	CA125 (+)	No	13.8	Right salpingo-oophorectomy	No

CA125: Cancer antigen 125.

Table 3 Features of testicular monodermal teratoma in previously reported cases

Number [Ref.]	Year	Age	Tumor location	Tumor marker	Imaging	Transfer	Maximum tumor diameter in cm	Treatment	Recrudescence
1[51]	2022	25, 58	Left testis, right testis	Normal	Ultrasound shows onion ring appearance	No	1.7, 1.7	Excision testicular tumor, Periodic review	No
2[48]	2022	67	Right testis	Normal	Unspecific	No	12.2	Right orchiectomy	No
3[37]	2020	43	Left testis	Normal	Ultrasound shows onion ring appearance	No	2.7	Left radical orchiectomy	No
4[52]	2020	26	Left testis	Normal	MRI showed onion ring appearance	No	4.8	Excision of left testicular tumor	No
5[45]	2019	62	Left testis	Normal	Ultrasound shows onion ring appearance	No	2.0	Left radical orchiectomy	No
6[53]	2015	11	Left testis	Normal	Unspecific	No	0.83	Excision of left testicular tumor	No

MRI: Magnetic resonance imaging.