A rare case of diffuse crescents in fibrillary glomerulonephritis

2021 ◽  
Author(s):  
Hae Yoon Grace Choung ◽  
Rickinder Grewal ◽  
Bruce Goldman
Keyword(s):  
Rare Case ◽  
Fibrillary Glomerulonephritis

Fibrillary glomerulonephritis or complement 3 glomerulopathy: a rare case of diffuse necrotising crescentic glomerulonephritis with C3-dominant glomerular deposition and positive DNAJB9

2021 ◽  
Vol 14 (2) ◽  
pp. e239868
Author(s):  
Lyle Wesley Baker ◽  
Mahnoor Khan ◽  
Cherise Cortese ◽  
Nabeel Aslam
Keyword(s):  
Rare Case ◽  
Crescentic Glomerulonephritis ◽  
Complement Pathway ◽  
Hepatitis C Infection ◽  
Fibrillary Glomerulonephritis ◽  
Complement 3 ◽  
Nephritic Syndrome ◽  
Mean Diameter ◽  
Alternative Complement ◽  
Glomerular Deposits

Fibrillary glomerulonephritis (FGN) and complement 3 glomerulopathy (C3G) are rare forms of glomerulonephritis with distinct aetiologies. Both FGN and C3G can present with nephritic syndrome. FGN is associated with autoimmune disease, dysproteinaemia, malignancy and hepatitis C infection. C3G is caused by the unregulated activation of the alternative complement pathway. We present a rare case of diffuse necrotising crescentic glomerulonephritis with dominant C3 glomerular staining on immunofluorescence—consistent with C3G—but electron microscopy (EM) findings of randomly oriented fibrils with a mean diameter of 14 nm and positive immunohistochemistry for DNAJB9—suggestive of FGN. To the best of our knowledge, this is the first reported case of FGN to show dominant C3 glomerular deposits. This case report reaffirms the utility of EM in the evaluation of nephritic syndrome and highlights the value of DNAJB9—a novel biomarker with a sensitivity and specificity near 100% for FGN.

Identification of Pulmonary Deposits from a Sandpaper Worker: A Study by Electron Microscopy and X-Ray Microanalysis

1982 ◽  
Vol 40 ◽  
pp. 52-53
Author(s):  
S. K. Peng ◽  
M.A. Egy ◽  
J. K. Singh ◽  
M.B. Bishop
Keyword(s):  
Electron Microscopy ◽  
Environmental Pollution ◽  
Rare Case ◽  
Interstitial Fibrosis ◽  
X Ray ◽  
Documented Case ◽  
Etiologic Agents ◽  
Pulmonary Interstitial Fibrosis ◽  
Gold Miners ◽  
Pulmonary Changes

Electron microscopy and energy dispersive x-ray microanalysis (EDXA) are found to be very useful tools for identification of etiologic agents in pneumoconiosis or interstitial pulmonary disorders. Pulmonary interstitial fibrosis and granulomatosis are frequently associated with occupational and environmental pollution. Numerous reports of pneumoconiosis in various occupations such as coal and gold miners are presented in the literature. However, there is no known documented case of pulmonary changes in workers in the sandpaper industry. This study reports a rare case of pulmonary granulomatosis containing deposits from abrasives of sandpaper diagnosed by using EDXA.

Abstract #736: A Rare Case of an Ectopic Parathyroid Adenoma Mimicking a Parathyroid Carcinoma

2015 ◽  
Vol 21 ◽  
pp. 143
Author(s):  
Elizabeth Sanchez Rangel ◽  
Maria Moscoso Cordero ◽  
Vinuta Mohan ◽  
Tasneem Zahra
Keyword(s):  
Parathyroid Adenoma ◽  
Parathyroid Carcinoma ◽  
Rare Case ◽  
Ectopic Parathyroid Adenoma ◽  
Ectopic Parathyroid

Abstract #110: Hemorrhagic Subdiaphragmatic Bronchogenic Cyst Mimicking an Adrenal Tumor: a Rare Case

2015 ◽  
Vol 21 ◽  
pp. 6
Author(s):  
Roy Guinto ◽  
Michele Ledoux ◽  
Alicia Williams ◽  
Anthony Mark
Keyword(s):  
Rare Case ◽  
Adrenal Tumor ◽  
Bronchogenic Cyst

Abstract #830: Rare Case of Severe Hypercalcemia: Gauchers Disease

2016 ◽  
Vol 22 ◽  
pp. 176-177
Author(s):  
Sudhamshi Toom ◽  
Elizabeth Sedlis Singer
Keyword(s):  
Rare Case ◽  
Severe Hypercalcemia

Abstract #1155: Acute Neck Swelling: A Rare Case of Spontaneous Hemorrhage in Thyroid Nodule

2016 ◽  
Vol 22 ◽  
pp. 278
Author(s):  
Anne Bacal ◽  
Nour Batarseh ◽  
Erin Drever ◽  
Tahira Yasmeen
Keyword(s):  
Thyroid Nodule ◽  
Rare Case ◽  
Neck Swelling ◽  
Spontaneous Hemorrhage
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