STAGE I: Tumor confined to ovaries

Ia

Tumor limited to 1 ovary, capsule intact, no tumor on surface, negative washings/ascites.

Ib

Tumor involves both ovaries otherwise like IA.

Ic

Tumor involves 1 or both ovaries with any of the following: capsule rupture, tumor on surface, positive washings/ascites.

Ic (a)

Capsule rupture before surgery

Ic (b)

Surgical spill

Ic (1)

Malignant cells in the peritoneal washings.

Ic (2)

Malignant cells in the ascites