Educational Disclaimer: This case study is for educational and informational purposes only. It does not constitute medical advice, clinical guidance, or a substitute for professional psychiatric evaluation. All diagnostic criteria referenced are from the DSM-5-TR (APA, 2022). Clinicians should rely on their professional training, direct patient assessment, and current evidence-based guidelines when making diagnostic and treatment decisions.

Clinical Vignette

Patient: "Tyler," 14-year-old boy, referred by juvenile court after his third shoplifting charge and a complaint of bullying that resulted in physical injury to a classmate.

Chief Concern: Probation officer: "Tyler has been in trouble since age 11. Shoplifting, vandalism, truancy, bullying. He doesn't seem bothered by any of it. He told me the kid he beat up 'deserved it' and showed no remorse when the kid ended up with a broken nose."

History of Present Illness: Tyler has exhibited a persistent pattern of behavior violating the rights of others and age-appropriate societal norms since age 11 (3 years). Documented behaviors include: (1) Aggression toward people: bullying (physical intimidation of 3 classmates), physical fights initiated by Tyler (5 school incidents), assault (broke a classmate's nose with a punch after the classmate refused to give him his lunch money). (2) Property destruction: vandalized 2 cars in a parking lot (keyed paint). (3) Deceitfulness: shoplifted on 3 occasions, lies to parents and teachers routinely about whereabouts and activities. (4) Rule violations: truancy (25 unexcused absences this year), stays out past curfew regularly (parents 'gave up trying'). He demonstrates the 'limited prosocial emotions' specifier: (a) Lack of remorse or guilt: showed no remorse about breaking classmate's nose. Stated: 'He shouldn't have said no to me.' (b) Callous/lack of empathy: unconcerned about the victim's injury. (c) Unconcerned about performance: indifferent to failing grades. (d) Shallow affect: emotional expression is limited and instrumentalized (shows anger to intimidate, but does not show sadness, guilt, or genuine warmth).

Past Psychiatric History: Diagnosed with ODD at age 9. ODD symptoms escalated to conduct violations by age 11.

Family History: Father: incarcerated for assault (antisocial personality disorder suspected). Mother: MDD. Older brother: substance use disorder.

Mental Status Exam: Slouches, minimal eye contact (defiant rather than anxious). Speech fluent, calculating. Affect flat/constricted. Shows no emotional response when discussing victims. Answers questions about his behavior matter-of-factly, without guilt or concern. When asked how the boy with the broken nose felt, replied: 'Don't know, don't care.' No psychotic symptoms. Cognition intact. Insight absent regarding impact on others.

Step 1: Conduct Disorder DSM-5-TR Criteria

Criterion A: ≥3 of 15 criteria in the past 12 months (with ≥1 in the past 6 months), across 4 categories.

Aggression: (1) often bullies/threatens (3 classmates). (2) initiates physical fights (5 incidents). (7) used physical force to extort (lunch money demand → assault). Destruction: (8) deliberately destroyed others' property (keyed 2 cars). Deceitfulness: (10) shoplifted without confronting victim (3x). (11) lies to obtain goods/avoid obligations (routine lying). Rule violations: (13) stays out at night despite parental prohibitions. (15) truancy (25 absences). Total: 8 of 15 criteria met. MET (8 criteria).

Criterion B: Clinically significant impairment.

Legal involvement (3 charges, probation), school suspensions, impaired peer relationships, family dysfunction. MET.

Criterion C: If age ≥18, criteria for ASPD are not met.

Age 14 — not applicable. MET (age-appropriate).

Onset Specifier: Childhood-onset type (≥1 symptom before age 10).

ODD diagnosed at age 9 with arguments and defiance, escalating to conduct violations by age 11. CHILDHOOD-ONSET TYPE.

Severity: Severe (many symptoms beyond minimum, considerable harm to others).

8 of 15 criteria met. Physical injury to peers. Legal involvement. SEVERITY: SEVERE.

Step 2: Limited Prosocial Emotions (CU Traits) Specifier

DSM-5-TR includes this specifier when ≥2 of the following characteristics are persistently displayed over ≥12 months:

(1) Lack of remorse or guilt

No remorse about assault or shoplifting. 'He shouldn't have said no to me.' PRESENT.

(2) Callous — lack of empathy

Unconcerned about victim's injury. 'Don't know, don't care.' PRESENT.

(3) Unconcerned about performance

Indifferent to failing grades. PRESENT.

(4) Shallow or deficient affect

Flat emotional expression. Instrumentalized affect (uses anger to intimidate). No genuine warmth, sadness, or guilt. PRESENT.

Prognostic Significance

All 4 CU trait features present. The limited prosocial emotions specifier identifies a subgroup with poorer prognosis, higher risk of progression to ASPD, and reduced responsiveness to standard behavioral interventions. These youth require more intensive, specialized treatment approaches.

Diagnostic Formulation

Diagnostic Conclusion

Conduct Disorder, Childhood-Onset Type, Severe, with Limited Prosocial Emotions (F91.1): 8 of 15 DSM-5-TR criteria (far exceeding 3 minimum). Childhood-onset (ODD at 9, conduct violations by 11). Severe. All 4 CU trait features present. Treatment: Multisystemic Therapy (MST — evidence-based for severe CD), family-based intervention addressing parental monitoring and supervision, prosocial skills training, juvenile justice collaboration. Pharmacotherapy limited: no FDA-approved medication for CD; risperidone may reduce reactive aggression if indicated.

Teaching Points

  • The limited prosocial emotions (LPE/CU traits) specifier is critical for prognosis and treatment planning. Youth with CD + CU traits show more severe conduct problems, more instrumental aggression (aggression for a purpose), less responsiveness to punishment-based interventions, and higher risk of progressing to adult ASPD.
  • The developmental trajectory from ODD → CD → ASPD is well-documented but NOT inevitable. Tyler followed this trajectory (ODD at 9, CD by 11), but early intervention at each stage can interrupt progression. The CU traits specifier identifies those at highest risk.
  • Childhood-onset CD (≥1 criterion before age 10) carries a worse prognosis than adolescent-onset CD (no criteria before age 10). Adolescent-onset CD is more often associated with peer influence and is more likely to remit. Tyler's childhood onset is an additional risk factor.
  • Multisystemic Therapy (MST) is the evidence-based treatment for severe CD. It addresses the youth's behavior in the context of their family, school, peer group, and community — targeting all systems simultaneously. It has stronger evidence than individual therapy alone for reducing recidivism.
  • Treatment of CD with CU traits requires modification of standard approaches. Punishment-based strategies are less effective because these youth are less sensitive to punishment cues. Reward-based strategies (reinforcing prosocial behavior) show more promise. Empathy training interventions are under investigation.