{Reference Type}: Case Reports {Title}: Navigating the diagnostic maze: A case presentation of C1q vasculitis mimicking hypocomplementemic urticarial vasculitis in a patient with systemic lupus erythematosus. {Author}: Castellanos-Molina V;Gomez A;Mejía M;Toquica A;Bernal-Macías S; {Journal}: Lupus {Volume}: 33 {Issue}: 8 {Year}: 2024 Jul 8 {Factor}: 2.858 {DOI}: 10.1177/09612033241253156 {Abstract}: In rare instances, patients with SLE may exhibit atypical clinical manifestations, such as Hypocomplementemic Urticarial Vasculitis, which can pose diagnostic challenges. Here, we present a case report of a 28-year-old female with a history of SLE with lupus nephritis clase IV who developed HUV-like symptoms, ultimately leading to a diagnosis of C1q Vasculitis. This case underscores the importance of considering C1q Vasculitis in SLE patients presenting with HUV-like features and highlights Rituximab as a promising therapeutic option for managing this rare condition.