Wang Y, Yang J. Primary yolk sac tumor in the abdominal wall in a 20-year-old woman: A case report.
World J Clin Cases 2023;
11:1642-1649. [PMID:
36926391 PMCID:
PMC10011988 DOI:
10.12998/wjcc.v11.i7.1642]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 01/19/2023] [Accepted: 02/16/2023] [Indexed: 03/02/2023] Open
Abstract
BACKGROUND
Extragonadal yolk sac tumors (YSTs) are rare, with only a low reported tumor occurrence outside the gonads locally and abroad. Extragonadal YSTs are usually a diagnostic challenge, because they are infrequent, but also because a thoughtful and detailed differential diagnostic process must be performed.
CASE SUMMARY
Here we present a case of an abdominal wall YST in a 20-year-old woman admitted with a tumor in the lower abdomen close to the umbilicus. The tumorectomy was performed. The histological examination revealed characteristic findings such as Schiller-Duval bodies, loose reticular structures, papillary structures, and eosinophilic globules. According to the immunohistochemical staining, the tumor tissue was positive for broad-spectrum cytokeratin, Spalt-like transcription factor 4, glypican-3, CD117, and epithelial membrane antigen. Based on the clinical information, histological features, and immunohistochemical staining profile, the tumor was diagnosed as a YST present in the abdominal wall.
CONCLUSION
Based on the clinical information, histological features, and immunohistochemical staining profile described above, the tumor was diagnosed as a primary YST in the abdominal wall.
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