CD40LG and Schnitzler syndrome: Based on the Strasbourg criteria for Schnitzler syndrome, which include a chronic urticarial rash (an obligatory criterion) and at least two minor criteria (recurrent fever, abnormal bone remodeling, elevated CRP/ESR, or monoclonal IgM component), the patient's presentation met the obligatory criterion and several minor criteria, justifying the diagnosis of Schnitzler-like syndrome.