Human pathology

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epithelioid trophoblastic tumor

Localization

- broad ligament (15104307)

Synopsis

- mononuclear tumor cells

  • distinct cell borders,
  • eosinophilic cytoplasm
  • nuclei with occasional indistinct nucleoli

- scattered multinucleated cells consistent with syncytiotrophoblastic cells were also present.

Immunochemistry

- cytokeratins AE1/AE3+
- CAM5.2+
- CK18+
- high Ki-67 proliferative index