The retinal tumor which characterizes retinoblastoma is malignant, meaning that it can metastasize (spread) to other parts of the eye and eventually other parts of the body.
Malignant ocular neoplasm of childhood, with onset usually before the third year of life, composed of primitive retinal small round cells with deeply staining nuclei and elongated cells forming...
From what I have read, a malignant narcissist is the same thing as a narcissist but with extra antisocial features. Basically if narcissists are bad, malignant ones are really really bad!
True....