From: p53 immunostaining pattern is a useful surrogate marker for TP53 gene mutations
MDM2 amplification status
No amplification
Amplification
Null type
27 (22.0)
1 (8.3)a
Usual
13 (10.6)
8 (66.7)
Overexpression
83 (67.5)
3 (25.0)
Total
123
12