Catatonia - An unusual presenting clinical manifestation of systemic lupus erythematosus.

A 24-year-old female presented with catatonia and symptoms suggestive of Depressive Disorder. She also gave history of undocumented low grade irregular fever. The patient was worked up to rule out any organic cause or psychiatric illness. However, further investigations revealed immunological profile diagnostic of Systemic Lupus Erythematosus (SLE) with CNS involvement (CNS lupus). The diagnosis of SLE in this patient presenting with catatonia was of practical importance because catatonia as one of the manifestations of SLE or as a standalone presenting symptom is extremely rare. Hence, clinicians should be aware of this rarity so that diagnosis of Neuropsychiatric SLE (NPSLE) or catatonia as a presenting feature of SLE is never missed.