A 24-year-old male presents with a 2-year preoccupation that his jaw is asymmetrical and 'grotesquely misshapen.' He spends over 3 hours daily examining his jaw in mirrors and comparing it to photos of celebrities, and he has begun wearing a medical mask in public to conceal his face. He denies any concern about body weight, shape, or food intake and maintains a normal BMI. When asked whether his concerns feel excessive, he states, 'This isn't in my head — anyone can see how deformed I look.' His friends and family insist his jaw appears completely normal.