Unique Ulcerative Autoinflammatory Disease Mistaken for Factitious Disorder

Autoinflammatory diseases (AID) are disorders of inappropriate innate immune system activation. Twenty-four percent of patients with AID do not have a well-defined clinical picture or pathogenic mutation and are characterized as having undefined AID. Cutaneous ulcers have been described but not outside of distinct histologic and clinical disorders. We present a unique case of undefined adult-onset AID with ulcers mistaken for a factitious disorder.