Patients with advanced serous ovarian carcinoma show increased expression of FABP4 in tumour cells metastasized to the omentum compared with cells of the primary tumour.11 NOTCH1 and VEGFA signalling are implicated in the progression of ovarian tumour angiogenesis.12, 13, 15, 16 However, studies investigating the expression in tumour vessels are lacking. The gene discussed is NOTCH1; the disease is ovarian serous carcinoma.