In most adult epithelia the process of replacing damaged or dead cells is maintained through the presence of stem/progenitor cells, which allow epithelial tissues to be repaired following injury. Existing evidence strongly supports the presence of stem cells in the adult kidney. Indeed, recent findings provide evidence in favour of a role for intrinsic renal cells and against a physiological ro...

Renal abscess, the accumulation of infected fluid in kidney, is a rare condition seen children as well adults. It leads to long term hospital admission and antibiotic use. Early diagnosis an important factor outcome renal abscess because management may differ. Urinalysis test results radiologic imaging findings patients who are admitted with complaints fever, vomiting, abdominal pain or flank f...

background renal scintigraphy with technetium 99m labeled dimercaptosuccinic acid (99mtc-dmsa) is a traditional imaging technique commonly used to detect renal scar in patients with probable vesicoureteral reflux (vur) and/or urinary tract infection (utis). we determined whether normal results of dmsa renal scan obviate the need for voiding cystourethrography (vcug) in evaluating children with ...

Chronic kidney disease (CKD), defined by loss of renal function, is highly prevalent, and imposes a large economic burden worldwide. Renal fibrosis is the final common pathway leading to CKD regardless of the initial insult. The extent of renal fibrosis is highly correlated with the severity of CKD. Understanding the pathophysiology of renal fibrosis is of paramount importance. Microscopically,...

SEE PAGE 1019 C ardiac magnetic resonance (CMR) late gadolinium enhancement (LGE) (1) is the current clinical gold standard modality for evaluation of focal fibrosis and scar in patients with an ischemic or a nonischemic cardiomyopathy. LGE requires administration of an exogenous gadoliniumbased contrast agent, which accumulates in the scar region. LGE imaging is commonly performed using an inv...

An increasing number of comprehensive genetic fate mapping studies have demonstrated that pericytes are the main progenitors renal scar-forming myofibroblasts, and contribute in poor repair acute kidney injury progression to chronic disease. Following unilateral ureteral obstruction, injured epithelial cells primarily secreted TGF-β1, which could then trigger pericyte-myofibroblast transition (...

The histopathologic diagnosis of primary focal segmental glomerulosclerosis (FSGS) has come to include a number of histologic lesions (variants), but the prognostic significance of these discrete lesions is controversial because published information regarding the presentation, course, and response to treatment is limited. A retrospective analysis was conducted of 87 nephrotic adult patients wi...

Oncocytoma is a well-defined benign renal tumor, with classic gross and histologic features, including a tan or mahogany-colored mass with central scar, microscopic nested architecture, bland cytology, and round, regular nuclei with prominent central nucleoli. As a result of variations in this classic appearance, difficulty in standardizing diagnostic criteria, and entities that mimic oncocytom...