<prompt> RBC cast is seen in?Minimal change diseaseRenal vein thrombosisBladder schistomiasisRapidly progressive Glomerulo-nephritis  <response>: Ans. d Rapidly progressive Glomerulo-nephritisRef: Robbiris pathology 9th ed. 912-915 RBC casts are a feature of glomerular damage. Normally 3 RBCHPF are going to leak. But in case of glomerular damage the number of RBC in urine will exceed the limit mentioned above and these RBC get impinged on tamm- horsfall protein. The resultant RBC casts can be seen under microscopic examination of urine. Bladder schistomiasis will cause hematuria and eosinophiluria. Renal vein thrombosis is a complication of severe dehydration and causes a painful enlarged kidney with hematuria. Minimal change disease is the most common cause of nephritic syndrome and causes proteinuria.Also knowDifferent Renal Casts and conditions where they are seen: Hyaline cast: MC type; seen in normal individuals in dehydration or vigorous exercise Muddy brown cast: seen in acute tubular necrosis Waxy casts: nephritic syndrome Fatty casts: pathognomonic for high urinary protein nephrotic syndrome. White blood cell casts: pyelonephritis 