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Table 1 RESULTS OF IMMUNOHISTOCHEMISTRY

From: Yolk sac tumor differentiation in urothelial carcinoma of the urinary bladder: a case report and differential diagnosis

AntibodyObservation
CK AE1/AE3Diffusely positive, except in chondroid nodules
CDX2Positive in glandular areas
Hep Par 1Positive in hepatoid areas
AFPDiffusely positive, more intense in glandular and hepatoid areas
GLP3Diffusely positive, more intense in glandular and hepatoid areas
SALL 4Diffusely positive, more intense in glandular and hepatoid areas
GATA 3Negative (positive in the initial urothelial component)
VIMPositive in small undifferentiated cells
OCT 3/4Negative
EMANegative
CK7Negative
SYNNegative