Metastatic seminoma in the duodenum: diagnosis with endoscopy followed by successful treatment

Maki Morinaga1, Taro Osada, Kazuyoshi Kon

  • 1Department of Gastroenterology, Juntendo University School of Medicine, Japan.

Insights

Seminomas rarely spread to the digestive system. This case report details a rare instance of metastatic seminoma in the duodenum, successfully treated with chemotherapy.

Area of Science:

  • Oncology
  • Gastroenterology

Background:

  • Seminomas typically metastasize to lungs or retroperitoneal lymph nodes.
  • Gastrointestinal metastasis from seminoma is exceptionally rare.

Observation:

  • A 34-year-old man with a history of orchiectomy for seminoma presented with dyspnea and melena.
  • Diagnostic endoscopy revealed metastatic seminoma in the third portion of the duodenum.

Findings:

  • The patient received chemotherapy for metastatic duodenal seminoma.
  • The treatment resulted in a positive clinical outcome with no recurrence.

Implications:

  • This case highlights the importance of considering rare metastatic sites in oncology.
  • Effective chemotherapy management is crucial for patients with advanced seminoma, even with unusual presentations.