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[Glomerulocystic kidney disease and hemolytic-uremic syndrome: clinicopathological case]
F Vera-Sempere1, I Zamora, J M Simón
1Servicio de Anatomía Patológica, Hospital Universitario La Fe, Valencia.
Insights
Glomerulocystic kidney disease, a rare condition, was observed in a boy post-hemolytic uremic syndrome. Histology confirmed glomerular origin, but cyst development causes remain unknown.
Area of Science:
- Nephrology
- Pathology
- Genetics
Background:
- Glomerulocystic kidney disease (GCKD) is a heterogeneous condition characterized by cortical cysts and glomerular tuft atrophy.
- It presents as a spectrum of disorders, often diagnosed in childhood.
Observation:
- A 13-year-old boy with end-stage renal disease secondary to hemolytic uremic syndrome (HUS) underwent renal transplantation.
- The patient had no urinary obstruction, extrarenal abnormalities, or family history of cystic kidney disease.
Findings:
- Histological and immunohistochemical analyses confirmed the glomerular origin of the cysts in this rare case of GCKD.
- The case suggests a potential acquired form of GCKD following HUS, a previously reported infrequent association.
Implications:
- This case highlights an infrequent association between glomerulocystic kidney disease and hemolytic uremic syndrome.
- Further research is needed to elucidate the unknown pathogenesis of cyst development in GCKD.
Abstract:
Glomerulocystic kidney is a heterogeneous group of conditions morphologically characterised by multiple cortical cysts apparently originated from a cystic dilation of the filtration space with atrophy of the glomerular tufts. We report a case of glomerulocystic kidney affecting a 13-year-old boy who underwent renal transplantation for end-stage renal disease following a haemolytic-uraemic syndrome diagnosed nine years ago. The absence of other stigmas (urinary obstruction, extrarenal congenital abnormalities and family history of cystic kidney disease) suggest that our observation is apparently a sporadic and acquired glomerulocystic kidney following a haemolytic-uraemic syndrome, an infrequent association previously reported only twice. Our histological and immunohistochemical findings suggest that the cysts in this rare condition are really of glomerular origin but the pathogenesis of cyst development remains unknown.