Case Report: Trousseau syndrome presenting as multifocal cerebral infarctions in advanced gastric signet-ring cell carcinoma: tumor burden–driven hypercoagulability - Summary - MDSpire

Case Report: Trousseau syndrome presenting as multifocal cerebral infarctions in advanced gastric signet-ring cell carcinoma: tumor burden–driven hypercoagulability

  • By

  • Haocheng Zhao

  • Shanshan Lin

  • Wenye Huang

  • July 15, 2026

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Objective:

To describe a case of malignancy-associated hypercoagulability leading to multiple cerebral infarcts in a patient with advanced gastric signet-ring cell carcinoma.

Approach:
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Key Findings:
  • The patient exhibited markedly elevated D-dimer levels, indicative of sustained coagulation activation.
  • Despite anticoagulation, D-dimer levels remained high, suggesting persistent hypercoagulability.
  • Initiation of systemic chemotherapy correlated with a decline in D-dimer levels and improvement in neurological deficits.
Interpretation:

The case highlights the relationship between tumor burden and systemic hypercoagulability.

Limitations:
  • The case study is based on a single patient, limiting generalizability.
  • The exact mechanisms linking tumor burden to hypercoagulability remain incompletely understood.
Conclusion:

Effective tumor-directed therapy may be necessary to mitigate cancer-related thrombotic complications.

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