Cancerous.
Wilms' tumor is a type of malignant tumor
Choriocarcinoma
If it is not known whether a tumor is benign or malignant, it is sometimes referred to as as "mass".
malignant
The tumor is said to be malignant.
Its a malignant tumor.
A carcinoma is a malignant tumor that occurs in epithelial tissue.
A malignant tumor is a mass of cells that invades and distroys healthy tissue.
The tests show that the tumor is malignant.
Osteosarcoma is a malignant tumor of osteoblasts.
A malignant tumor is cancerous and is likely to be more harmful than a benign tumor.
malignant