Renal Biopsy Interpretation

摘要: The kidneys are two bean shape organs within peritoneum located between12th thoracic rib to 3rd lumbar vertebrae. A space named perirenal, with fatty tissue, surrounds each kidney (2). In the anterior, there pancreas, duodenal loop, ascending and descending colon, hepatic, splenic, proximal superior mesenteric arteries. posterior, is fat but no organs. exhibit craniocaudal movement of 1.9 4.1 cm during respiration (4). Each organ weights 125 170 gr in males 115 150 females(4). Both together represent 0.04% total body weight. Kidney weight correlates best surface area, whereas age, sex, race do not influence it (5). dimensions 11-12 (length), 5-7.5 (width) 2.5-3 (thickness). Renal volume can increase or decrease by 15% 40% major fluctuations blood pressure, intravascular volume, interstitial expansion edema (6). renal artery divides into anterior posterior arteries which turn give off segmental arteries, supply apical, upper, middle, lower regions parenchyma (7). After branching divisions at hilus, main gives interlobar (between lobes extend corticomedullary junction), arcuate cortex medulla) interlobular (extend capsule) respectively. Afferent arterioles branched from make glomerulus efferent after glomerulus, forms peritubular capillaries around tubules. Efferent form vasa recta supplies outer inner medulla (8). Multiple anastomoses between lobule create a capillary meshwork. veins similar pattern as leave On cut kidney, pale region (cortex) darker (medulla) .The divided 18 pyramids. pyramid base junction, apex has 20-70 small openings representing distal ends