A 15-year-old boy has a history of torturing and killing animals. He has also exhibited violent behavior towards other students at school. What’s his diagnosis?
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[02:23] Question of the Week
A 15-year-old boy is brought to the psychiatrist by his parents. While they’re away, the boy placed their pet dog in the microwave and then the freezer eventually trampling her to death.
This is the second incident that the parents know of in which he tortured and killed an animal. When he was 10 years old, he was caught trying to set fire to his school. He has exhibited violent behavior towards other students at school many times.
Which of the following is the most likely diagnosis?
(A) conduct disorder
(B) antisocial personality disorder
(C) oppositional defiant disorder
(D) borderline personality disorder
[04:56] Thought Process Behind the Correct Answer
The correct answer here is B. conduct disorder. This is actually a really tricky question because the labels end up being important because they kind of predict future behavior as adults.
Conduct disorder can be diagnosed in children and adolescents under the age of 12 who have at least a 12 month history of violating the rights of others. This also includes violating social norms, aggression towards other people or animals, deceit, property destruction, truancy and other rule violations.
Now someone with conduct disorder probably also has elements of some of these others. They were really kind of harping the cruelty to animals, the fire setting and those are what are prominent. And they also mentioned that this has been going on for at least a year, if not more.
Oppositional defiant disorder is one where you just ignore everything your parents tell you to do and you just will not get along and listen and behave in that way.
Antisocial personality disorder is possible, but the stipulation for that is you need to be at least 18 or older to be considered antisocial. I think the idea behind that is that since it’s a personality disorder. Whoever made up these rules thinks your personality is not fully developed or at least developed enough to be considered a disorder until you’re at least 18.
A borderline personality disorder are the folks that are going to be splitting. They don’t necessarily or very rarely are going to be putting animals in the freezer and the microwave. It’s more a matter of inward direction of their symptoms. They dissociate. They have suicidal tendencies and they have fear of rejection. But not typically these outbursts of violence and so on.
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