Is a cancer patient interdicted from disposing of their property and making donations?

A person afflicted with a death-illness is restricted from disposing of more than one-third of their estate, in order to safeguard the rights of the heirs. A dangerous illness is one in which death is highly probable, and this is determined by the experience and statements of physicians. If the patient recovers, all their dispositions become valid. However, if they die, their dispositions are effective only within the limit of one-third, unless the heirs approve the excess. This applies to a cancer patient if physicians determine their condition to be dangerous.