Massive Renal Replacement Lipomatosis With Foci of Xanthogranulomatous Pyelonephritis in a Horseshoe Kidney
نویسندگان
چکیده
Renal replacement lipomatosis (RRL) is a rare condition that occurs at the end of the spectrum of renal tissue replacement by fat. Xanthogranulomatous pyelonephritis (XGP) is a granulomatous inflammation characterized by destruction of renal parenchyma and replacement by lipid-laden macrophages. We present the case of a 75-year-old man who complained of severe anemia 34 years after right nephrolithotomy. Computed tomography revealed a huge low-density mass with renal parenchyma atrophy on the right side of horseshoe kidney. Right nephrectomy was performed. Pathological diagnosis was RRL with XGP. This is the first report of RRL with XGP in a horseshoe kidney.
منابع مشابه
Imaging Spectrum of Renal Replacement Lipomatosis: A Case Series
Source of Funding: Self Conflicts of interest: None DOI: 10.16965/ijims.2016.126 Renal replacement lipomatosis is a rare benign entity, characterized by diffuse replacement of renal parenchyma, sinus and hilum with adipose tissue resulting in renal parenchymal atrophy. Etiology may be secondary to obesity, cushing’s syndrome, corticosteroid excess or idiopathic. Renal replacement lipomatosis is...
متن کاملRenal replacement lipomatosis and xanthogranulomatous pyelonephritis: differential diagnosis.
Renal replacement lipomatosis (RRL) is a relatively uncommon entity, although misdiagnosis mainly with xanthogranulomatous pyelonephritis (XGP) due to lack of awareness by urologists, radiologists, and pathologists may be responsible for underreporting1,2. We illustrate a case of RRL that was initially misdiagnosed as XGP, and compare it with a classic case of XGP, underscoring the similarities...
متن کاملExtensive renal sinus lipomatosis in xanthogranulomatous pyelonephritis simulating liposarcoma.
Renal replacement lipomatosis is a condition characterized by varying degrees of renal parenchymal atrophy and perirenal fibrofatty proliferation secondary to chronic inflammation such as xanthogranulomatous pyelonephritis. In severe cases, imaging findings can be misdiagnosed as retroperitoneal liposarcoma.
متن کاملXanthogranulomatous Pyelonephritis with Spontaneous Nephrocutaneous Fistula
Xanthogranulomatous pyelonephritis is a severe, rare, form of chronic pyelonephritis characterized by the destruction of the renal parenchyma and replacement by granulomatous tissue.This disease has been called as the “great imitator” because clinical and radiological findings often mimics other inflammatory or neoplastic renal disorders leading to diagnostic challenge before histopathologic an...
متن کاملXanthogranulomatous pyelonephritis report of a case in a 5 year old boy
Xanthogranulomatous pyelonephritis is an unusual type of the kidney infection which is characterized by infiltration of mononuclear inflammatory cells and lipid laden macrophages ( foam cells). It is manifested by a firm, lobulated and yellowish kidney mass which is difficult to differentiate from renal cell carcinoma grossly. Six out of 1000 cases of cryonic pyelonephritis which are treated su...
متن کامل