Replacement Lipomatosis of the Kidney

Honda, Hiroshi; McGuire, Charles W.; Barloon, Thomas J.; Hashimoto, Kimio

doi:10.1097/00004728-199003000-00012

Cited by 20 publications

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“…In contrast to renal sinus lipomatosis, RRSL is usually a unilateral process accompanied by parenchymal atrophy that results from calculous disease, chronic hydronephrosis, or infection. [2][3][4][5] Often there is extension of lipomatosis into the perirenal and periureteral spaces as well. [2][3][4][5] Sonography is a suitable modality for evaluation of patients with RRSL.…”

Section: Discussionmentioning

confidence: 99%

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Replacement Lipomatosis of the Kidney

Ginat

Bhatt

Dogra

2008

Journal of Ultrasound in Medicine

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eplacement renal sinus lipomatosis (RRSL) is an uncommon disorder characterized by renal sinus fat proliferation resulting from renal parenchymal atrophy, inflammation, or calculous disease. We present the sonographic features of RRSL secondary to nephrolithiasis in a 75-year-old man. The patient was successfully treated with lithotripsy. Several entities can resemble the appearance of RRSL, including malakoplakia, fat-containing tumors, and xanthogranulomatous pyelonephritis (XGP). Sonography and a high index of suspicion are helpful in making a diagnosis of RRSL.Received April 20, 2008, Case ReportThe patient was a 75-year-old man with a history of radical cystectomy for bladder carcinoma with a urostomy. He had intermittent urolithiasis, in which calculi were passed through his urostomy. The patient underwent sonography to assess for renal stones. Sonography revealed an enlarged left kidney marked by a proliferation of renal sinus fat visualized as homogeneously increased echogenicity and virtually replacing the entire renal parenchyma. Overall, the left kidney measured 13.1 cm. However, a small atrophic renal cortex was identified in the periphery. Moderate focal hydronephrosis was apparent distally, indicating a mass effect of sinus fat on the calyceal system. A large calculus was situated in the pelviureteral junction (Figure 1). Renal arterial flow was preserved. Sonographic findings of the right kidney were unremarkable except for a diffusely echogenic sinus, indicative of a fatty component compatible with age-related renal sinus lipomatosis (Figure 2).

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Section: Discussionmentioning

confidence: 99%

“…[2][3][4][5] Often there is extension of lipomatosis into the perirenal and periureteral spaces as well. [2][3][4][5] Sonography is a suitable modality for evaluation of patients with RRSL. 3 The salient findings include an enlarged echogenic central sinus, which contains a calculus in 70% of cases.…”

Section: Discussionmentioning

confidence: 99%

Replacement Lipomatosis of the Kidney

Ginat

Bhatt

Dogra

2008

Journal of Ultrasound in Medicine

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“…And also use of exogenous steroids may cause renal lipomatosis (3,4). The severe loss of parenchyma with massive fat deposition is associated with inflammatory changes and calculi in 76-79% of cases (2). Associated nonspecific clinical symptoms are urinary tract infection, fever, flank pain, weight loss and hematuria.…”

Section: Discussionmentioning

confidence: 99%

“…Fat containing neoplasms arising in the parenchyma, renal sinus, renal capsule, or perinephric space, such as angiomyolipoma, lipoma, and liposarcoma, can also be readily differentiated from RRL. In addition to the marked loss of renal parenchyma, nonfunctioning of the kidney, and renal calculi, the adipose tissue in RRL is concentrated to a location corresponding to the renal sinus and hilus possible with a diffuse extension perirenal space (2,5,6). Heavily T2-weighted pulse sequences to obtain static water images of the urinary tract.…”

Section: Discussionmentioning

confidence: 99%

Replacement Lipomatosis of the Kidney: Mri Features

et al. 2008

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Renal replacement lipomatosis of the kidney is characterized by renal sinus and perirenal fat proliferation. It is associated with chronic infection and calculi, commonly central, often obstructing. The kidney may be large or small but is usually nonfunctioning. Most of the renal parenchyma has been replaced by fat, pararenal fascia are thickened, and there may be fistulae. We reported radiological findings of renal replacement lipomatosis in a 55 year-old man.

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“…BT'de böbrek parankiminde veya perirenal alandaki yağ dansitesinde kitle şeklinde gözlenebilir. Böbrek taşının eşlik etmemesi, böbrek fonksiyonlarının tam olması ve tüberoskle-rozlu hastalarda sıklıkla görülmesi ayırt edicidir 7,11 . Lipom ve liposarkomda parankimal atrofi ve geyik boynuzu böbrek taşları izlenmeyebilir.…”

Section: șEkil 3 72 Yașında Kadın Hasta Pre-kontrast (A) Ve Post-kounclassified

Renal Sinus Lipomatosis

Başara¹,

Akın²,

Serter³

et al. 2013

Kafkas J Med Sci

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AIM: The aim of this study is to present the fi ndings of patients with renal sinus lipomatosis and review the subject in the light of the recent literature. METHODS: All computerized tomography images obtained in the GirișRenal sinüs lipomatozu, intrarenal toplayıcı sistemlerde kitle etkisi oluşturabilen benign, anormal yağ birikimi olarak tanımlanabilen bir hastalıktır 1 . Renal sinüs ve perirenal alanda anormal yağ doku büyümesi ilerleyen yaş ya da obezite gibi değişik sebeplere bağlı ortaya çıkmaktadır. Bunların yanında yağ dokusunun anormal artışı renal doku destrüksiyonu veya atrofi si, dışarıdan alınan veya tümörler tarafından üretilen steroidlerin etkisi sonucunda görülebilir 1,2 . Replasman lipomatozu; renal sinüs lipomatozunun bir formu olup, kronik böbrek taşı hastalığı, hidronefroz gibi durumlara bağlı renal atrofi halinde, renal sinüste ve perirenal alanda bulunan yağ dokusunda belirgin artış ve renal parankim dokusunun yerini yağ dokusunun alması olarak tanımlanır 3 . Bu duruma böbrek parankimindeki atrofi neden olmaktadır 3 .Radyolojik görünümü tipik olan renal sinüs lipomatozunun farklı şekillerinin bilinmesi, tanı koyma sı-rasında yanılmaları önler. Konvansiyonel radyografi k ve ultrasonografi k inceleme yöntemleri (direkt grafi , ultrasonografi ) bu durum için tanı koydurucu değil-dir. Buna karşın, bilgisayarlı tomografi (BT) bulguları tanısaldır [4][5][6][7] . Bu yazımızda farklı derecelerde yağ birikimi gösteren renal sinüs lipomatozu ve replasman

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Replacement Lipomatosis of the Kidney

Cited by 20 publications

References 0 publications

Replacement Lipomatosis of the Kidney

Replacement Lipomatosis of the Kidney

Replacement Lipomatosis of the Kidney: Mri Features

Renal Sinus Lipomatosis

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