(A) About 23 cm sized cyst in the right fallopian tube and its surface was clear. (B) On cut section, tumor had multiple papillary growing in inner area. (C) The papillae were covered by serous type of epithelium (H&E, ×40). (D) Displaying stratification and budding with focal nuclear atypia (H&E, ×200). Serous borderline tumor of the fallopian tube. Choi SM, Choi MY, Kang WD, Choi HS, Kim SM - Obstetrics & gynecology science (2014).Not Altered. CC.