Shrinking lung syndrome (SLS) is a rare cause of dyspnea that has been most commonly described in patients with systemic lupus erythematosus (SLE), but is also found in systemic sclerosis, Sjögren’s disease and rheumatoid arthritis. Shrinking lung syndrome is characterized by a restrictive pattern on lung spirometry, despite normal lung parenchyma, and an elevated diaphragm.1…
Case Report: A Polyarteritis Nodosa Conundrum
Polyarteritis nodosa (PAN) is a systemic necrotizing vasculitis that typically affects medium-sized muscular arteries. The clinical subsets of PAN are idiopathic, generalized, secondary hepatitis B virus (HBV) associated and cutaneous PAN. These clinical subsets are important because of their therapeutic implications. Virtually any organ system can be affected in generalized PAN, but this vasculitis tends…