Figure 1
From: PTEN loss of expression predicts cetuximab efficacy in metastatic colorectal cancer patients

Epidermal growth factor receptor gene status evaluated by FISH in metastatic colorectal cancers. (A) Patient showing eusomy of chromosome 7. (B) Patient with marked polysomy on chromosome 7. (C) Patient with EGFR gene amplification in at least 10% of tumoral cells.