Facebook Icon Twitter icon Instagram icon Feedback

Clear Cell Borderline Tumor : Microinvasion

prev slide 10 of 75 next
No Image


Clear cell borderline tumors must be thoroughly sampled to rule out areas of destructive stromal invasion. Small foci of microinvasion are still compatible with the diagnosis of clear cell borderline tumor.

In this case, a small 0.3 mm focus of microinvasion was found in 18 sections submitted for a 10 cm tumor. The remainder of the tumor was composed of tubulocystic and simple papillary structures. There is multilayering and nuclear pseudostratification with mild to moderate cytologic atypia. Mitotic activity is not increased (same case as image 7)

prev slide 10 of 75 next