Which marker is NOT in the embryonal carcinoma panel?

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Multiple Choice

Which marker is NOT in the embryonal carcinoma panel?

Explanation:
Embryonal carcinoma has a distinctive immunophenotype that helps distinguish it from other germ cell tumors. The markers that are most informative for identifying embryonal carcinoma include CD30 and transcription factors like SOX2, which reflect its embryonal, epithelial-like differentiation. Markers such as synaptophysin are not central to defining this tumor type and aren’t relied upon in the embryonal carcinoma panel. Keratin, while an epithelial marker, is a broad marker that isn’t used to define this specific panel for embryonal carcinoma in this context. So, keratin is the marker not included in the embryonal carcinoma panel.

Embryonal carcinoma has a distinctive immunophenotype that helps distinguish it from other germ cell tumors. The markers that are most informative for identifying embryonal carcinoma include CD30 and transcription factors like SOX2, which reflect its embryonal, epithelial-like differentiation. Markers such as synaptophysin are not central to defining this tumor type and aren’t relied upon in the embryonal carcinoma panel. Keratin, while an epithelial marker, is a broad marker that isn’t used to define this specific panel for embryonal carcinoma in this context. So, keratin is the marker not included in the embryonal carcinoma panel.

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