An Unusual Presentation of Adult-Onset Still's Disease in a Patient with Recurrent Pleural and Pericardial Effusions.

Adult-Onset Still's Disease (AOSD) usually presents with a salmon-colored skin rash and arthralgias. However, it can also be present with pleural and pericardial effusions. These effusions are often misdiagnosed as having an infectious etiology because AOSD usually present with fever, leukocytosis, elevated inflammatory markers, procalcitonin and CRP.

Dermatomyositis-Induced Rhabdomyolysis With Features of Necrotizing Myopathy and Acute Inflammatory Demyelinating Polyneuropathy in an Epstein-Barr Virus Infected Patient.

Dermatomyositis (DM) is an autoimmune inflammatory myopathy characterized by features of a typical rash, proximal muscle weakness, and evidence of muscle inflammation. Acute inflammatory demyelinating polyneuropathy (AIDP) is an autoimmune peripheral nerve disease characterized by myelin damage and progressive areflexic weakness and sensory changes. AIDP can be precipitated by viral infections such as Epstein-Barr virus (EBV).

A Rare Case of Central Nervous System Vasculitis in a Patient with Perinuclear Antineutrophil Cytoplasmic Antibodies-associated Interstitial Lung Disease.

Antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV) is a systemic necrotizing inflammation of the small vessels. Central nervous system (CNS) ANCA-associated vasculitis is a rare manifestation of AAV. Three mechanisms of AAV affecting the CNS have been reported which include contiguous granulomatous invasion from nasal and paranasal sinuses, remote granulomatous lesions, and vasculitis of small vessels.