Scrub Typhus-Induced Macrophage Activation Syndrome with Flare of Systemic Lupus Erythematosus: A Rare Case Report
Debroop Sengupta *
Department of General Medicine, Institute of Post Graduate Medical Education & Research, Kolkata, India.
Upamanyu Bag
Department of General Medicine, Institute of Post Graduate Medical Education & Research, Kolkata, India.
Kamal Poddar
Department of General Medicine, Institute of Post Graduate Medical Education & Research, Kolkata, India.
Aakash Guha Roy
Institute of Post Graduate Medical Education & Research, Kolkata, India.
Shramana Sarkar
Institute of Post Graduate Medical Education & Research, Kolkata, India.
Sandip Ghosh
Department of General Medicine, Institute of Post Graduate Medical Education & Research, Kolkata, India.
Shantasil Pain
Department of General Medicine, Institute of Post Graduate Medical Education & Research, Kolkata, India.
*Author to whom correspondence should be addressed.
Abstract
Aims: Infection is a major trigger for both Lupus flare and Macrophage activation syndrome. Scrub typhus infection associated with lupus flare or MAS has been very rarely reported. We report a case of scrub typhus-induced MAS along with a flare of disease activity in a neuropsychiatric lupus patient presenting after discontinuation of medications.
Presentation of Case: 13-year-old girl, a known case of neuropsychiatric lupus with lupus nephritis, on immunosuppressant for the last 1 year had stopped all medications for 3 months. She had presented with a fever and altered sensorium. Based on clinical and laboratory investigations, a diagnosis of scrub typhus-induced macrophage activation syndrome with a flare of lupus disease activity was made and the patient was treated with injection doxycycline and glucocorticoids. There was rapid clinical improvement with treatment.
Discussion: The case emphasizes the importance of identifying the exact trigger behind the deterioration of a patient with lupus and its therapeutic implications. An infection alone requires antibiotics only, flare without infection requires up titrating immunosuppressants but the presence of life-threatening complications like MAS along with infection requires prompt treatment of both facets simultaneously.
Conclusion: Scrub typhus infection should be ruled out apart from other common infections in any patient with lupus flare or MAS.
Keywords: Scrub typhus, macrophage activation syndrome, systemic lupus erythematosus, lupus
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References
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