title: Primary peritoneal serous carcinoma with signet ring cells.
abstract: ► The case is unique as the signet ring-like tumor cells in the ascites occur in primary peritoneal serous tumors. ► The tumor cells may have degenerated, which led to the formation of cytoplasmic vacuoles and resembled signet ring-like cells.
authors.affiliation: Department of Gynecology and Obstetrics, Peking University People's Hospital, Beijing, People's Republic of China.
authors.forename: Yanru
authors.initials: Y
authors.lastname: Hou
authors.affiliation: Department of Gynecology and Obstetrics, Peking University People's Hospital, Beijing, People's Republic of China.
authors.forename: Yi
authors.initials: Y
authors.lastname: Li
authors.affiliation: Department of Pathology, Peking University People's Hospital, Beijing, People's Republic of China.
authors.forename: Danhua
authors.initials: D
authors.lastname: Shen
authors.affiliation: Department of Gynecology and Obstetrics, Peking University People's Hospital, Beijing, People's Republic of China.
authors.forename: Heng
authors.initials: H
authors.lastname: Cui
keywords: Primary peritoneal carcinoma; Signet ring cells