Table 1.

Serum levels of several biomarkers associated with immature teratoma

Date	Timely phase of treatment	AFP, ng/mL	hCG, mIU/mL	CA-125, U/mL	CA-19-9, U/mL	CEA, ng/mL
11 Dec 2018	Postoperative (primary tumor)	4.16	>1.00	17.12	N/A	N/A
29 Apr 2019	Follow-up	5.81	0.18	N/A	N/A	N/A
3 Jan 2019	Follow-up	1.95	N/A	16.50	N/A	N/A
29 Jul 2019	Follow-up	1.58	0.71	N/A	N/A	N/A
2 Feb 2020	Follow-up	1.17	0.23	N/A	N/A	N/A
10 Aug 2020	Postoperative (secondary tumor)	1.50	0.00	10.50	4.94	>0.10

Table shows serum levels of AFP, hCG, CA-125, CA-19-9, and CEA over the course of treatment. Primary tumor (ovarian immature teratoma) was resected through salpingo-oophorectomy, while the secondary tumor (small bowel mature teratoma) was removed through laparoscopic segmental small bowel resection.

AFP, alpha-fetoprotein; hCG, human chorionic gonadotropin; CEA, carcinoembryonic antigen.