Low-grade serous carcinoma

(A) Nests of low-grade serous carcinoma invading the stroma with accompanying desmoplastic response and psammoma bodies. Note the lack of nuclear pleomorphism and low mitotic rate (200x hematoxilin and eosin staining).
(B) High-power view of low-grade serous carcinoma. Although there is some nuclear pleomorphism, there are no mitotic figures identified (400x hematoxilin and eosin).