Smoking-Related Glomerulopathy: Expanding the Morphologic Spectrum
Chronic smoking and hypertension may lead to smoking-related nodular glomerulopathy (SRNG), a well-recognized entity that clinically and pathologically mimics nodular diabetic nephropathy (DN). However, like DN, diffuse mesangial sclerosis may occur in this setting without nodules. The clinicopathologic features of 10 non-diabetic patients with a long smoking history diagnosed from 2003-2012 showing diffuse mesangial glomerulosclerosis (6) or SRNG (4) were analyzed. Nine of 10 patients were men, aged 58-80 with a 20-58 pack-year smoking history. None of the patients manifested diabetes, but all of them had hypertension. Numerous other cardiovascular comorbidities were present. At biopsy, the mean creatinine was 1.9 mg/dl (range 1.4-3) and the mean proteinuria was 3.9 g/24 h. The renal pathologic findings were similar in all patients except mesangial nodules in SRNG. Global glomerulosclerosis was seen in 6-72% of glomeruli (mean 31%), glomerulomegaly in all cases, and a range of interstitial fibrosis in 10-70% (mean 43%). Moderate (40%) and severe (50%) arteriosclerosis and arteriolar hyalinosis (80%) were also observed. Glomerular hilar or mesangial neovascularization was prominent. Endothelial swelling, subendothelial widening, and new basement membrane formation suggesting chronic healing thrombotic microangiopathy (TMA) was noted in 80%. No immune complexes were localized. Kidney biopsies from patients with proteinuria and chronic renal insufficiency in the setting of prolonged smoking and hypertension show either diffuse or nodular mesangial glomerulosclerosis. Chronic glomerular mesangial and endothelial injury associated with smoking leads to a chronic TMA appearance in the appropriate setting, even in the absence of mesangial nodule formation. © 2015 S. Karger AG, Basel.
| Medienart: |
Artikel |
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| Erscheinungsjahr: |
2015 |
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| Erschienen: |
2015 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:41 |
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| Enthalten in: |
American journal of nephrology - 41(2015), 1, Seite 66-72 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Salvatore, Steven P [VerfasserIn] |
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| Links: |
Volltext |
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| doi: |
10.1159/000371727 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| 520 | |a Chronic smoking and hypertension may lead to smoking-related nodular glomerulopathy (SRNG), a well-recognized entity that clinically and pathologically mimics nodular diabetic nephropathy (DN). However, like DN, diffuse mesangial sclerosis may occur in this setting without nodules. The clinicopathologic features of 10 non-diabetic patients with a long smoking history diagnosed from 2003-2012 showing diffuse mesangial glomerulosclerosis (6) or SRNG (4) were analyzed. Nine of 10 patients were men, aged 58-80 with a 20-58 pack-year smoking history. None of the patients manifested diabetes, but all of them had hypertension. Numerous other cardiovascular comorbidities were present. At biopsy, the mean creatinine was 1.9 mg/dl (range 1.4-3) and the mean proteinuria was 3.9 g/24 h. The renal pathologic findings were similar in all patients except mesangial nodules in SRNG. Global glomerulosclerosis was seen in 6-72% of glomeruli (mean 31%), glomerulomegaly in all cases, and a range of interstitial fibrosis in 10-70% (mean 43%). Moderate (40%) and severe (50%) arteriosclerosis and arteriolar hyalinosis (80%) were also observed. Glomerular hilar or mesangial neovascularization was prominent. Endothelial swelling, subendothelial widening, and new basement membrane formation suggesting chronic healing thrombotic microangiopathy (TMA) was noted in 80%. No immune complexes were localized. Kidney biopsies from patients with proteinuria and chronic renal insufficiency in the setting of prolonged smoking and hypertension show either diffuse or nodular mesangial glomerulosclerosis. Chronic glomerular mesangial and endothelial injury associated with smoking leads to a chronic TMA appearance in the appropriate setting, even in the absence of mesangial nodule formation. © 2015 S. Karger AG, Basel | ||
| 540 | |a Nutzungsrecht: © 2015 by S. Karger AG, Basel | ||
| 540 | |a © 2015 S. Karger AG, Basel. | ||
| 650 | 4 | |a Chronic kidney disease | |
| 650 | 4 | |a Proteinuria | |
| 650 | 4 | |a Idiopathic nodular glomerulopathy | |
| 650 | 4 | |a Smoking-related glomerulopathy | |
| 650 | 4 | |a Intestinal Diseases - pathology | |
| 650 | 4 | |a Vascular Diseases - pathology | |
| 650 | 4 | |a Glomerular Basement Membrane - pathology | |
| 650 | 4 | |a Eye Diseases, Hereditary - pathology | |
| 650 | 4 | |a Hypertension - complications | |
| 650 | 4 | |a Nephrotic Syndrome - etiology | |
| 650 | 4 | |a Arteriosclerosis - pathology | |
| 650 | 4 | |a Thrombotic Microangiopathies - pathology | |
| 650 | 4 | |a Diarrhea - pathology | |
| 650 | 4 | |a Neovascularization, Pathologic - pathology | |
| 650 | 4 | |a Skin Abnormalities - pathology | |
| 650 | 4 | |a Fibrosis - pathology | |
| 650 | 4 | |a Sclerosis - etiology | |
| 650 | 4 | |a Proteinuria - urine | |
| 650 | 4 | |a Sclerosis - pathology | |
| 650 | 4 | |a Smoking - adverse effects | |
| 650 | 4 | |a Nephrotic Syndrome - pathology | |
| 650 | 4 | |a Creatinine - blood | |
| 650 | 4 | |a Glomerulosclerosis, Focal Segmental - pathology | |
| 700 | 1 | |a Troxell, Megan L |4 oth | |
| 700 | 1 | |a Hecox, Douglas |4 oth | |
| 700 | 1 | |a Sperling, Kevin R |4 oth | |
| 700 | 1 | |a Seshan, Surya V |4 oth | |
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