Table 1: Frequency of PIK3CA molecular alteration (gene mutations (m) and amplification (a)) in ovarian cancer.

Ovarian cancer	Type I				Type II
	Low Grade Serous	Clear Cell	Endometrioid	Mucinous	High Grade Serous
25 % (a) 12 % (m) [106]	5% [137]	35-50% (m) [138, 139]	20% (m) [138]	Rare	3% (m) 20% (a) [140]