Peritoneal fluid cytology in serous borderline tumours of the ovary

stewart c. j. r. and kennedy j. h. (1998) Cytopathology 9, 38–45
Peritoneal fluid cytology in serous borderline tumours of the ovary
Peritoneal fluid cytology findings in three patients with serous borderline tumours of the ovary and peritoneal serous implants are presented. The specimens were characterized by papillary groups, acinar clusters and single neoplastic cells exhibiting cytoplasmic vacuolation and nuclear atypia of variable degree. The cytological appearances were initially considered consistent with ovarian adenocarcinoma in all cases. Histological correlation is required to avoid this diagnostic pitfall.