The result of FISH is significantly related to prognosis of patients with IHC-negative or IHC-equivocal result. Therefore, FISH should be performed in IHC-equivocal cases. FISH assay might be considered for a selected group of patients with IHC-negative tumors showing luminal B subtype features of ER-positive, grade II/III, and high Ki-67 expression.
Department of Surgery, Yonsei University College of Medicine, Seoul, Korea.
Cancer. 2012 Feb;118(4):914-23
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