Spasmodic Motions of the Face (Facial Tics)
This 11-year-old boy with obsessive-compulsive disorder is most likely to have spasmodic motions of the face (facial tics) as an additional symptom. 1
Clinical Reasoning
The DSM-5 diagnostic criteria for OCD explicitly include a tic-related specifier that denotes individuals with a current or past history of a tic disorder 1. This specifier exists because:
- Males with early-onset OCD (before puberty) are significantly more likely to have comorbid tics 1
- This 11-year-old boy fits the profile of early-onset OCD with his 10-month history of ritualistic counting and compulsive behaviors
- The DSM-5 specifically recognizes tic-related OCD as a distinct subtype requiring tailored evaluation and management 1
Why Not the Other Options?
Cravings for ice (pica) - This symptom suggests iron deficiency anemia and has no established association with OCD in the literature provided.
Easy distractibility - While attention difficulties can occur with OCD due to intrusive obsessions, this is not a characteristic comorbid feature. The guidelines distinguish OCD from ADHD-type symptoms 1.
Inability to stay awake - Excessive daytime sleepiness is not a recognized feature of OCD. While OCD can disrupt sleep through nighttime rituals, somnolence is not characteristic.
Visual hallucinations - The guidelines explicitly state that OCD should be differentiated from psychotic disorders 1. While patients with poor insight may be "completely convinced that OCD beliefs are true," they do not experience true hallucinations 1. The boy in this case recognizes that monsters don't exist, demonstrating at least fair insight.
The OCD-Tic Connection
The relationship between OCD and tic disorders (including Tourette syndrome) is well-established in the literature:
- Both conditions are classified together in the obsessive-compulsive and related disorders chapter 1
- They share overlapping neurobiological mechanisms involving basal ganglia and frontostriatal circuitry 1
- Sensory phenomena including premonitory urges and "just right" perceptions can be present in both OCD and Tourette syndrome 1
Clinical Implications
When evaluating this patient, specifically assess for:
- Motor tics (eye blinking, facial grimacing, head jerking)
- Vocal tics (throat clearing, grunting, coprolalia)
- Premonitory urges before performing compulsions
- Family history of tic disorders
The presence of tics may influence treatment selection, as tic-related OCD can respond differently to certain interventions 1.