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Journal of the Korean Society of Pediatric Nephrology 2012;16(1): 21-31. doi: https://doi.org/10.3339/jkspn.2012.16.1.21
초점성 분절성 사구체 경화증의 병리와 분류
김용진
영남대학교 의과대학 병리학교실
Pathology and Classification of Focal Segmental Glomerulosclerosis
Yong-Jin Kim
Department of Pathology, Yeungnam University College of Medicine
Received: March 14, 2012;  Accepted: April 15, 2012.
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ABSTRACT
Focal segmental glomerulosclerosis (FSGS) is the name of the primary glomerular disease as well as the terminology to describe the secondary phenomena of any other glomerular diseases. It is characterized by sclerosis, hyalinosis, foam cell infiltration, vacuolar change of podocytes, and halo formation in the glomerulus. Throughout the interstitium, lymphocytes infiltration, tubular atrophy and vascular changes are accompanied. Occasionally, IgM and/or C3 depositions are noted in the sclerotic areas. Electron microscopically, diffuse effacement of foot processes are seen in non-sclerotic area like minimal change disease. Podocyte injury patterns including vacuolar changes are frequently examined. Recently, Columbia group has suggested morphologic classification of FSGS and they demonstrated very good prognosis of tip lesion and poor prognosis of both collapsing and cellular types. However, the pathogenetic classification has been suggested by others; hyperfilteration, podocyte injury, genetic lesions etc. Further studies are necessary to understand and treat this disease.
Key words: Focal segmental glomerulosclerosis | Histopathology | Classification
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