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Collagenofibrotic glomerulopathy: a systemic disease
1Third Department of Internal Medicine, Akita University School of Medicine, Akita City, Japan.
Insights
Collagenofibrotic glomerulopathy, a kidney disorder, involves abnormal type III collagen accumulation. This case suggests it may be a systemic condition affecting multiple organs, potentially worsened by dialysis.
Area of Science:
- Nephrology
- Pathology
- Biochemistry
Background:
- Collagenofibrotic glomerulopathy is a rare kidney disease.
- Characterized by abnormal collagen fibril accumulation in the glomeruli.
- Associated with elevated serum procollagen III peptide levels.
Observation:
- Autopsy findings of a patient with 7 years of continuous ambulatory peritoneal dialysis (CAPD).
- Massive collagen fiber accumulation observed not only in kidneys but also in spleen, liver, myocardium, and thyroid.
- Peculiar collagen fiber morphology noted.
Findings:
- The patient exhibited collagenofibrotic glomerulopathy.
- Systemic deposition of abnormal collagen fibers across multiple organs.
- Potential link between CAPD and collagen deposition or exacerbation.
Implications:
- Suggests collagenofibrotic glomerulopathy may be a systemic disorder.
- Highlights potential abnormal metabolism of type III collagen.
- Warrants further investigation into the systemic nature and potential triggers of this condition.
Abstract:
Collagenofibrotic glomerulopathy is a recently discovered entity that is characterized by massive accumulation of spiraled and frayed collagen fibrils in mesangial and subendothelial areas, and elevated serum levels of procollagen III peptide. We report the autopsy of a patient who received continuous ambulatory peritoneal dialysis (CAPD) therapy for 7 years. Autopsy disclosed that massive accumulation of peculiar collagen fibers was found not only in the kidney, but also in many organs including spleen, liver, myocardium, and thyroid gland. Although the possibility remains that CAPD for 7 years might change or aggravate the deposition of abnormal collagen, the current case suggests a possibility that collagenofibrotic glomerulopathy is a systemic disorder with abnormal metabolism of type III collagen.