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Case Reports
. 2022 Aug 9:12:928234.
doi: 10.3389/fonc.2022.928234. eCollection 2022.

Relapsed and refractory yolk sac tumor of the peritoneum (mesentery): A case report and literature review

Xue Zhou  1 , Lanbo Zhao  1 , Xue Feng  1 , Zhenni Pan  2 , Yadi Bin  1 , Siyi Zhang  1 , Min Li  1 , Miao Guo  1 , Huilian Hou  3 , Qiling Li  1
Affiliations
Case Reports

Relapsed and refractory yolk sac tumor of the peritoneum (mesentery): A case report and literature review

Xue Zhou et al. Front Oncol. .

Abstract

Background: Extragonadal yolk sac tumor (YST) of peritoneum is a rare malignancy.

Case description: A 37-year-old Chinese woman was admitted to hospital with a 3-month abdominal pain 4 years ago. Alpha-fetoprotein was 228,499.0 ng/mL. Computed tomography scan revealed a massive mass in the left lower abdomen. Exploratory laparotomy exposed a huge mesenteric mass. Then, mesenteric tumor resection, partial sigmoidectomy, and single-lumen fistula of sigmoid colon were performed. Postoperative pathologic diagnosis reported a stage IV mesenteric YST. After surgery, the patient received 6 courses of BEP (bleomycin, etoposide, and cisplatin) chemotherapy. Seven months later, the patient underwent stoma reversion of sigmoid colon and received another 2 courses of BEP chemotherapy. Three months after the last chemotherapy, liver metastases were diagnosed. She subsequently underwent 3 surgeries, radiotherapy for liver metastases, and multiple tiers of palliative chemotherapies, including TP (docetaxel and carboplatin), VIP (ifosfamide, cisplatin, and etoposide), TIP (paclitaxel, ifosfamide, and cisplatin), and so on. After the third surgery (left hepatic lesion resection and right iliac lymph node resection), she received 4 cyclic chemotherapies of BEP´ (boanmycin, etoposide, and cisplatin) without pulmonary toxic side effects.

Conclusion: Postoperative histopathology and immunohistochemistry are gold standards for the diagnosis of peritoneal YST. The standard first-line treatment is surgery plus BEP chemotherapy. Second-line therapy regimens and above, including VIP and TIP, improve the prognosis of recurrent germ cell tumors. This relapsed and refractory patient with peritoneal YST benefits from the secondary BEP´ chemotherapy.

Keywords: boanmycin; literature review; peritoneum; recrudescence; yolk sac tumor.

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Conflict of interest statement

The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.

Figures

Figure 1
Figure 1
Image picture and pathologic images of mesenteric YST. (A) CT scan of mass in the left lower quadrant. (B) Hematoxylin-eosin staining of the mesenteric YST (×200). (C) Immunohistochemical staining of CK was strong positive(×200). (D) Immunohistochemical staining of AFP was strong positive(×200). (E) Immunohistochemical staining of CD117 was weakly positive (×200). (F) Immunohistochemical staining of PALP was weakly positive (×200). (G) Immunohistochemical staining of CDX2 was weakly positive (×200). (H) Immunohistochemical staining of Ki-67 was 50% positive (×200).
Figure 2
Figure 2
The changing trend of serum alpha-fetoprotein. BEP, bleomycin, etoposide and cisplatin; TP, docetaxel and carboplatin; VIP, ifosfamide, cisplatin and etoposide; RT, radiotherapy; PD-1*, tislelizumab; VTC, vinorelbine tartrate capsules; TIP, paclitaxel, ifosfamide and cisplatin; VEFGi, bevacizumab. *: Tislelizumab is an anti-programmed cell death protein-1 (PD-1) antibody.
Figure 3
Figure 3
Chest computed tomography scan. (A) Slight interstitial changes in the lung before BEP´ chemotherapy. (B) Slight interstitial changes in the lung after BEP´ chemotherapy.
See this image and copyright information in PMC

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