Q-fever can simulate a lupus flare.

Persistent Fever and Pancytopenia: Lupus Flare vs Macrophage Activation Syndrome

Rare complicated parapneumonic effusion, Mycoplasma pneumoniae with new-onset lupus flare: Case report and literature review

Mycoplasma pneumoniae has been associated with respiratory tract infections. Mycoplasma pneumoniae pneumonia-related pleural effusion is rarely reported. Extra-pulmonary abnormalities such as encephalitis, myocarditis, glomerulonephritis, and myringitis have been reported. However pulmonary manifestations in systemic lupus erythematosus include pneumonitis, pleurisy, interstitial lung disease, ...

Dengue fever triggering systemic lupus erythematosus and lupus nephritis: a case report

We report a rare case of dengue fever triggering systemic lupus erythematosus and lupus nephritis. The patient presented herself during a large outbreak of dengue fever in December 2012 in Maharashtra, India. The diagnosis of dengue fever was confirmed by the presence of NS-1 antigen during the first few days of febrile illness. Eight weeks later, kidney tissue biopsy studies revealed evidence ...

[Rhabdomyolysis associated with dengue fever in a lupic patient].

This report describes the case of a woman with systemic lupus erythematous (SLE) that developed rhabdomyolysis after being infected by dengue virus. There are only a few cases of SLE accompanied by rhabdomyolysis, none of them associated with dengue fever. Initially, the woman presented high fever, myalgia, muscular weakness, mild headache, polyarthralgia and thrombocytopenia reminding a lupus ...

Analysis of Erythrocyte C4d to Complement Receptor 1 Ratio: Use in Distinguishing between Infection and Flare-Up in Febrile Patients with Systemic Lupus Erythematosus

OBJECTIVE Fever in systemic lupus erythematosus (SLE) can be caused by infection or flare-up of the disease. This study aimed to determine whether the ratio of the level of erythrocyte-bound C4d to that of complement receptor 1 (C4d/CR1) can serve as a useful biomarker in the differentiation between infection and flare-up in febrile SLE patients. METHODS We enrolled febrile SLE patients and d...