Figure 3From: A colliding maxillary sinus cancer of adenosquamous carcinoma and small cell neuroendocrine carcinoma - a case report with EGFR copy number analysisEGFR gene FISH analysis. The field was observed by the triple band filter (1000×). (A) Mostly monosomy in ductal cells. (B) Both disomy and monosomy in neuroendocrine cells. (C) Some cells with increased EGFR copy number in squamous cell components.Back to article page