Pan-nephritis (glomerulonephritis, arteriolitis, and tubulointerstitial nephritis) associated with predominant mesangial C1q deposition and hypocomplementemia: a variant type of C1q nephropathy?
| Autor: | Ken Satoh, Yasushi Nakamoto, Tadashi Yasuda, Hirokazu Imai, Akira B. Miura, Tamotsu Sugawara |
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| Rok vydání: | 1996 |
| Předmět: |
Adult
Male Pathology medicine.medical_specialty Glomerulonephritis Membranoproliferative Biopsy Lupus nephritis Kidney urologic and male genital diseases Nephropathy Diagnosis Differential Nephritic syndrome Membranoproliferative glomerulonephritis medicine Humans Arteritis business.industry Complement C1q Fibrinogen Respiratory infection Glomerulonephritis Complement C3 Syndrome medicine.disease Glomerular Mesangium Immunoglobulin A Arterioles Phenotype Immunoglobulin M Nephrology Immunoglobulin G Immunology Nephritis Interstitial Mesangial proliferative glomerulonephritis business Nephritis |
| Zdroj: | American Journal of Kidney Diseases. 27:583-587 |
| ISSN: | 0272-6386 |
| DOI: | 10.1016/s0272-6386(96)90171-7 |
| Popis: | A 35-year-old man showed acute nephritic syndrome manifested as proteinuria, hematuria, and hypocomplementemia after upper respiratory infection. A renal biopsy showed mild to moderate mesangial proliferative glomerulonephritis with an accumulation of mononuclear cells in the capillary loop and with the deposition of C1q (graded as 3+), immunoglobulin (Ig) G, C3 (2+), IgA, IgM, and fibrinogen (weak to 1+), and mononuclear cell infiltration of the glomerular hilus, arterioles, and proximal tubules, which was a peculiar form of renal lesion. The mesangial deposition of C1q has been well documented in lupus nephritis, membranoproliferative glomerulonephritis, and endocapillary glomerulonephritis. The clinical signs and laboratory data in our patient ruled out these diseases. Although an immunofluorescence study showed these similarities to Clq nephropathy, the histopathological features of the peculiar arteriolitis and tubulointerstitial nephritis and laboratory findings of hypocomplementemia, as well as the good response to oral steroid therapy, differed from typical C1q nephropathy. The current patient appears to be a very rare phenotype of nephritis, being the only 1 case in almost 2,800 renal biopsies. |
| Databáze: | OpenAIRE |
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