Simultaneous Occurrence of Systemic Lupus Erythematosus, Rheumatoid Arthritis, Hashimoto’s Thyroiditis and Membranous Glomerulonephritis

Introduction: Membranous glomerulonephritis is commonly described in systemic lupus erythematosus (SLE) and hypothyroidism. Clinical presentation: We report a case of a 40-year-old woman who presented with a membranous glomerulonephritis associated with SLE, rheumatoid arthritis and hypothyroidism due to Hashimoto’s thyroiditis. Conclusions: The simultaneous occurrence of these three diseases as possible causes of membranous glomerulonephritis is extremely exceptional.

Granulomatosis with Polyangiitis (Wegener Granulomatosis) Mimicking Infective Endocarditis

Introduction Infective endocarditis (IE) has been reported to mimic granulomatosis with polyangiitis (GPA) and to test positive to antineutrophil cytoplasmic antibodies (ANCA), which may lead to a misdiagnosis and inappropriate treatment. Case presentation We report a case of a 59-year-old man admitted for purpura, gangrenous digital infarcts and glomerulonephritis. The diagnosis of IE was initially considered on the basis of heart murmur and two positive haemocultures to corynebacterium. Ineffectiveness of antimicrobial therapy and further neurological and nasal manifestations supported the diagnosis of GPA. Conclusions IE should be ruled out before initiation of immunosuppressive treatment. If the disease progresses despite antimicrobial treatment, vascular diseases should be rapidly taken into account in differential diagnosis and treated early to avoid fatal complications.