Stroke as an unusual initial presentation of 'malignant' middle cerebral artery infarction involvement in systemic lupus erythematosus

SLE, or systemic lupus erythematosus, is a chronic autoimmune condition of uncertain origin characterized by the presence of autoantibodies that target the body's own antigens.

A 16-year-old female presented at the emergency room with a right-sided lip droop and subsequently developed symptoms consistent with a malignant hemispheric infarction, including altered consciousness, hemiplegia, and forced gaze deviation. Her laboratory results were within the normal range. However, a brain MRI revealed cerebral edema and a massive infarction in the middle cerebral artery (MCA) region. Subsequently, her serologic profile was indicative of SLE, leading to a later diagnosis.

The patient in this case presented with symptoms suggestive of a stroke. A CT scan showed MCA occlusion, leading to a diagnosis of malignant MCA syndrome. The patient was also diagnosed with systemic lupus erythematosus, which is associated with an increased risk of stroke. Inflammation-induced thrombosis and CNS vasculitis are potential mechanisms linking SLE and stroke.

This case serves as an example of a sudden and potentially life-threatening presentation of SLE, underscoring the importance of early detection and targeted treatment that can influence the course of the disease.