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These data demonstrate the diagnostic utility of CA IX in (1) differentiating CRCC from ChRCC and oncocytomas, (2) distinguishing low-grade CRCC from normal renal tubules in small samples, (3) separating ICC from HCC, and (4) identifying metastatic CRCC from other metastases with clear cell features.
Luong-Player et al. (Thu,) studied this question.