A disease of mind causing an uncontrollable desire to steal

One word substitute is Kleptomania.

Schizophrenia: a long-term mental disorder of a type involving a breakdown in the relation between thought, emotion, and behaviour, leading to faulty perception, inappropriate actions and feelings, withdrawal from reality and personal relationships into fantasy and delusion, and a sense of mental fragmentation.
Claustrophobia: extreme or irrational fear of confined places.
Kleptomania: a recurrent urge to steal, typically without regard for need or profit.
Megalomania: obsession with the exercise of power.