HTRA1 and Krukenberg carcinoma: Narkiewicz and co-workers (50) assessed HtrA1 mRNA and protein in 98 women with various types of ovarian tumors (20 benign, 7 borderline, 44 malignant, and 8 Krukenberg tumors) or with healthy ovaries (n=19) using densitometry, which provided relative values of HtrA1 expression.