Cases reported "Glomerulonephritis, Iga"

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1/283. IgA nephropathy in cystic fibrosis.

    The kidney does not usually present specific lesions in cystic fibrosis (CF), although in recent years renal involvement has been reported, particularly amyloidosis and immune complex glomerulonephritis. IgA nephropathy is rare. We report four cases of IgA nephropathy out of five renal biopsies performed in the last three years in patients with CF and renal involvement and discuss the possibility of a relationship between IgA nephropathy and CF. ( info)

2/283. A case of aortitis syndrome and IgA nephropathy: possible role of human leukocyte antigens in both diseases.

    A 51-year-old woman, who had both aortitis syndrome (takayasu arteritis) and IgA nephropathy, presented with hypertension, fever, a high erythrocyte sedimentation rate, high c-reactive protein and serum IgG levels, proteinuria, and renal dysfunction. Renal arteriography showed stenosis and poststenotic dilatation at the origin of the right renal artery, as well as tortuosity of the left renal artery branches and marked atrophy of the left kidney. Renal biopsy showed IgA nephropathy with deposits of IgA, C3, and fibrinogen in the glomeruli and arteriolosclerosis. The present patient had human leukocyte antigen (HLA)-B 52, which is reported to be related to the aortitis syndrome, as well as HLA-DR 4, which is possibly related to IgA nephropathy, suggesting that HLA status may be involved in the pathogenesis of both diseases. ( info)

3/283. Post transplant CD8 gammadelta T-cell lymphoma associated with human herpes virus-6 infection.

    Gammadelta T-cell lymphoma is a rare T-cell lymphoproliferative disorder that has been reported in both immunocompetent and immunocompromised persons. This report describes a forty eight year old patient who developed gammadelta T-cell lymphoma four years after undergoing living-related kidney transplantation. The lymphoma expressed CD2, CD3, CD7, CD8 and CD56, and the gammadelta T-cell receptor and did not express CD5, CD4 and the alphabeta T-cell receptor. In addition, HHV-6 was cultured from the patient's bone marrow, marking the first time that this virus has been associated with gammadelta T-cell lymphoma. Since all patients with gammadelta T-cell lymphoma described to date have responded poorly to standard combination chemotherapies, the patient was treated with the purine analogue 2-chlorodeoxyadenosine. While he responded transiently to treatment, long term remission was not achieved indicating that additional therapeutic approches still need to be developed, for the management of this disorder. ( info)

4/283. Positive antineutrophil cytoplasmic antibodies-associated vasculitis presenting with hemoptysis and a mediastinal mass.

    A patient with end-stage renal failure, due to IgA nephropathy, was found to have a mediastinal mass. biopsy specimen of the mass showed a necrotizing vasculitis. Antineutrophil antibodies to myeloperoxidase were strongly positive. To our knowledge, no case of a mediastinal mass due vasculitis has been reported in the literature, and our observation should lead to broadening of the spectrum of clinical manifestations of vasculitis. ( info)

5/283. Hemolytic uremic syndrome associated with immunoglobulin a nephropathy: a case report and review of cases of hemolytic uremic syndrome with glomerular disease.

    A 35-year-old man with immunoglobulin a (IgA) nephropathy who developed hemolytic uremic syndrome (HUS) presented with transient elevation of serum creatinine, thrombocytopenia, and hemolytic anemia with fragmented red cells with nephrotic syndrome. Hemolytic anemia and the temporarily deteriorated renal function were improved after hemodialysis and plasma exchange. Histological findings were consistent with HUS and IgA nephropathy. Including this case, we reviewed the cases of HUS accompanied by glomerular diseases reported from 1969 to 1996. Surprisingly, most cases showed nephrotic syndrome at the onset of HUS. Several possible relationships between HUS and nephrotic syndrome are discussed. ( info)

6/283. IgA glomerulonephritis associated with microscopic polyangiitis or Churg-Strauss syndrome.

    When renal insufficiency occurs in classical antineutrophil cytoplasm antibody- (ANCA) associated vasculitides, histological examination usually finds pauci-immune focal segmental glomerulonephritis. We report on 2 cases of histologically proven necrotizing vasculitis associated with IgA nephropathy. Concomitant vasculitis and IgA nephropathy has only rarely been reported but this joint occurrence may not be coincidental as its pathophysiology is not known. Among vasculitides, IgA nephropathy has more frequently been associated with Henoch-Schoenlein purpura: one microscopic polyangiitis unusual because the patient simultaneously presented ANCA and microaneurysms, and the other churg-strauss syndrome associated with mild renal insufficiency. This uncommon association might represent a possible overlap syndrome between these ANCA-associated vasculitides and IgA nephropathy or simply a new type of glomerulonephritis that must be taken into account in these vasculitides. ( info)

7/283. Recurrent Goodpasture's disease due to a monoclonal IgA-kappa circulating antibody.

    We describe the case of a 54-year-old man who first presented with a clinical syndrome manifested by recurrent pulmonary hemorrhage, hematuria, and mild renal insufficiency. Direct immunofluorescence of renal biopsy sections showed linear deposition of IgA-kappa in the glomerular (GBM) and tubular basement membranes. serum protein immunoelectrophoresis was positive for a monoclonal immunoglobulin A (IgA)-kappa protein. serum analysis showed circulating IgA anti-GBM antibodies. Treatment with high-dose steroids, cyclophosphamide, and plasma exchange resulted in resolution of the clinical picture. To the best of our knowledge, this is the first report of Goodpasture's disease associated with the presence of a circulating monoclonal IgA-kappa antibody. ( info)

8/283. hypercalciuria preceding IgA nephropathy in a child with haematuria.

    We describe a child with isolated haematuria who was diagnosed and successfully treated for idiopathic hypercalciuria for 6 months, after which IgA nephropathy was demonstrated on renal biopsy performed due to the relapse of haematuria in spite of low calciuria levels. To our knowledge, this is the first case evaluated systematically in the literature shown to have IgA nephropathy while being followed up for idiopathic hypercalciuria. ( info)

9/283. association of IgA nephropathy with clostridium difficile colitis.

    immunoglobulin a (IgA) nephropathy, the most common cause of glomerulonephritis worldwide, is usually idiopathic in origin and renal limited. Secondary IgA nephropathy has been associated with systemic disease, including such gastrointestinal tract disturbances as celiac sprue and inflammatory bowel disease. We describe gross hematuria and reversible acute renal failure from IgA nephropathy in a patient with cephalosporin-induced clostridium difficile colitis. In addition to mesangial IgA and C3 deposition, renal histological examination showed glomerular bleeding, intratubular red blood cell casts, and acute tubular necrosis. To the best of our knowledge, this is the first report of an association between IgA nephropathy and C difficile colitis. ( info)

10/283. immunoglobulin a nephropathy complicating pulmonary tuberculosis.

    A 31-year-old man who presented with smear- and culture-negative pulmonary tuberculosis had associated macroscopic hematuria, elevation of serum creatinine and immunoglobulin a (IgA) levels, overt proteinuria, and peripheral edema. Renal biopsy revealed focal mesangial proliferation with IgA deposits, and a diagnosis of IgA nephropathy was made. The patient received treatment with isoniazide and rifampin. After 4 months, pulmonary lesions were almost completely healed, and a significant improvement of creatinine clearance with normalization of serum creatinine and IgA levels and disappearance of proteinuria were observed. Treatment with isoniazide and rifampin was discontinued after 6 months, without reappearance of either pulmonary or renal symptoms. Two years after the diagnosis of IgA nephropathy, the patient is in good general condition. serum creatinine and IgA levels are normal, proteinuria is absent, and there is neither macrohematuria nor microhematuria. These findings suggest that IgA nephropathy may be a consequence of tuberculosis, possibly due to an abnormal IgA-mediated immune response against mycobacterium tuberculosis with formation of nephrotoxic immune complexes. ( info)
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