Light and electron microscopic observation in a case of congenital renal proximal tubular dysfunction. 1992

T Ogawa, and N Yorioka, and T Toyota, and K Kanahara, and Z H Joarder, and M Yamakido, and K Kataoka
2nd Department of Internal Medicine, Hiroshima University School of Medicine, Japan.

We report a case of congenital renal proximal tubular dysfunction (CRPTD) accompanied by IgA nephropathy. The mesangial matrix was slightly increased with depositions of IgA and C3. Podocytes contained many clear vacuoles. Cuboidal cells, as well as squamous cells, lined the parietal epithelium of Bowman's capsule, although the functional or pathological significance of the cuboidal cells is unknown. The proximal tubular cells appeared to have a less-developed apical endocytic complex, basal infoldings and fewer lysosomes. These morphological changes may reflect proximal tubular dysfunction.

UI MeSH Term Description Entries
D007674 Kidney Diseases Pathological processes of the KIDNEY or its component tissues. Disease, Kidney,Diseases, Kidney,Kidney Disease
D007687 Kidney Tubules, Proximal The renal tubule portion that extends from the BOWMAN CAPSULE in the KIDNEY CORTEX into the KIDNEY MEDULLA. The proximal tubule consists of a convoluted proximal segment in the cortex, and a distal straight segment descending into the medulla where it forms the U-shaped LOOP OF HENLE. Proximal Kidney Tubule,Proximal Renal Tubule,Kidney Tubule, Proximal,Proximal Kidney Tubules,Proximal Renal Tubules,Renal Tubule, Proximal,Renal Tubules, Proximal,Tubule, Proximal Kidney,Tubule, Proximal Renal,Tubules, Proximal Kidney,Tubules, Proximal Renal
D008297 Male Males
D008854 Microscopy, Electron Microscopy using an electron beam, instead of light, to visualize the sample, thereby allowing much greater magnification. The interactions of ELECTRONS with specimens are used to provide information about the fine structure of that specimen. In TRANSMISSION ELECTRON MICROSCOPY the reactions of the electrons that are transmitted through the specimen are imaged. In SCANNING ELECTRON MICROSCOPY an electron beam falls at a non-normal angle on the specimen and the image is derived from the reactions occurring above the plane of the specimen. Electron Microscopy
D011507 Proteinuria The presence of proteins in the urine, an indicator of KIDNEY DISEASES. Proteinurias
D005922 Glomerulonephritis, IGA A chronic form of glomerulonephritis characterized by deposits of predominantly IMMUNOGLOBULIN A in the mesangial area (GLOMERULAR MESANGIUM). Deposits of COMPLEMENT C3 and IMMUNOGLOBULIN G are also often found. Clinical features may progress from asymptomatic HEMATURIA to END-STAGE KIDNEY DISEASE. Berger Disease,Immunoglobulin A Nephropathy,Nephropathy, IGA,Berger's Disease,IGA Glomerulonephritis,IGA Nephropathy,Iga Nephropathy 1,Nephritis, IGA Type,Bergers Disease,Glomerulonephritides, IGA,IGA Type Nephritis,Nephropathy 1, Iga,Nephropathy, Immunoglobulin A
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults

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