Xanthogranulomatous pyelonephritis presenting as<i>Proteus</i>preperitoneal abscess

Yeow, Yuyi; Chong, Yew‐Lam

doi:10.1093/jscr/rjw211

Cited by 4 publications

(4 citation statements)

References 6 publications

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“…These infectious stones can lead to sepsis, hydronephrosis, reduced kidney function, or pyelonephritis due to the collecting system being substantially obstructed [6] . Intra-parenchymal, para-nephric and retroperitoneal abscesses can occur as a complication of chronic pyelonephritis due to staghorn calculi [7 , 8] . Stone removal by percutaneous nephrolithotomy with antibiotics is the ideal treatment for patients with staghorn calculi alone [2 , 9] .…”

Section: Discussionmentioning

confidence: 99%

“…Staghorn calculi account for about 4% of presenting renal stones in developed countries [1] , are a source of recurrent urinary tract infection (UTI) and may eventually be treated by surgical stone removal [2] . Intra-parenchymal, para-nephric and retroperitoneal abscesses can occur as a complication of chronic pyelonephritis due to staghorn calculi [7 , 8] . Although, intra-abdominal abscess formation is a known complication of dropped gallstones after laparoscopic cholecystectomy [3 , 4] , there is a paucity of data about retroperitoneal abscess caused by dropped renal stones following percutaneous nephrolithotomy (PCNL).…”

Section: Introductionmentioning

confidence: 99%

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Retroperitoneal abscess caused by dropped renal stones

Valeshabad

Thomas

Mohan

et al. 2022

Radiology Case Reports

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Staghorn calculi account for about 4% of presenting renal stones in developed countries, are source of recurrent urinary tract infection, and may be eventually treated by surgical stone removal. A 55-year-old female with a history of staghorn renal calculi and recurrent urinary tract infections presented with a left flank and lower abdominal pain following recent left robotic partial nephrectomy and nephrolithotomy. Contrast-enhanced computed tomography (CT) of the abdomen demonstrated a large left-sided retroperitoneal fluid collection with a few dropped renal stones in the dependent portion of the collection. The patient treated with early percutaneous drainage of the collection and antibiotic treatment and responded well clinically. The clinical and imaging presentation of a rare case of retroperitoneal abscess formation caused by dropped renal stones is described in this study. Imaging, particularly ultrasound and CT, plays a key role in detecting the dropped renal stones and can help with differential diagnosis and treatment plans.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Retroperitoneal abscess caused by dropped renal stones

Valeshabad

Thomas

Mohan

et al. 2022

Radiology Case Reports

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“…The renal pelvis [ 23 ] is the most common location in the urinary tract, but cases arising in the ureter [ 24 ], bladder [ 25 , 26 , 27 ], and urethra [ 28 ] have been occasionally reported. Several microorganisms, especially Proteus mirabilis and Escherichia coli, have been implicated in its genesis generally associated with infective phosphate lithiasis, especially [ 29 ]. Although this condition mimics a tumor, its diagnosis does not preclude malignancy since cases of XI associated with cancer have been reported also in the urinary tract [ 25 , 30 ].…”

Section: Xantho-granulomatous Inflammation (Xi)mentioning

confidence: 99%

Mimickers of Urothelial Carcinoma and the Approach to Differential Diagnosis

Manini

Angulo

López

2021

Clinics and Practice

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A broad spectrum of lesions, including hyperplastic, metaplastic, inflammatory, infectious, and reactive, may mimic cancer all along the urinary tract. This narrative collects most of them from a clinical and pathologic perspective, offering urologists and general pathologists their most salient definitory features. Together with classical, well-known, entities such as urothelial papillomas (conventional (UP) and inverted (IUP)), nephrogenic adenoma (NA), polypoid cystitis (PC), fibroepithelial polyp (FP), prostatic-type polyp (PP), verumontanum cyst (VC), xanthogranulomatous inflammation (XI), reactive changes secondary to BCG instillations (BCGitis), schistosomiasis (SC), keratinizing desquamative squamous metaplasia (KSM), post-radiation changes (PRC), vaginal-type metaplasia (VM), endocervicosis (EC)/endometriosis (EM) (müllerianosis), malakoplakia (MK), florid von Brunn nest proliferation (VB), cystitis/ureteritis cystica (CC), and glandularis (CG), among others, still other cellular proliferations with concerning histological features and poorly understood etiopathogenesis like IgG4-related disease (IGG4), PEComa (PEC), and pseudosarcomatous myofibroblastic proliferations (post-operative spindle cell nodule (POS), inflammatory myofibroblastic tumor (IMT)), are reviewed. Some of these diagnoses are problematic for urologists, other for pathologists, and still others for both. Interestingly, the right identification of their definitory features will allow their correct diagnoses, thus, avoiding overtreatment. The literature selected for this review also focuses on the immunohistochemical and/or molecular data useful to delineate prognosis.

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“…The renal pelvis [23] is the most common location in the urinary tract, but cases arising in the ureter [24], bladder [25][26][27] and urethra [28] have been occasionally reported. Several microorganisms, especially P. mirabilis and E. coli, have been implicated in its genesis generally associated to infective phosphate lithiasis, specially [29]. Although this condition mimics a tumor, its diagnosis does not definitely preclude malignancy since cases of XI associated to cancer have been reported also in the urinary tract [25,30].…”

Section: Xantho-granulomatous Inflammationmentioning

confidence: 99%

Simulators of Urothelial Carcinoma

Manini¹,

Angulo²,

Ji³

2020

Preprint

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A broad spectrum of lesions, including hyperplastic, metaplastic, inflammatory, infectious, and reactive, may mimic cancer all along the urinary tract. This narrative collects most of them from a clinical and pathologic perspective offering urologists and general pathologists their most salient definitory features. Together with classical, well-known, entities such as urothelial papillomas (conventional and inverted), nephrogenic adenoma, polypoid cystitis, fibroepithelial polyp, prostatic-type polyp, verumontanum cyst, xanthogranulomatous inflammation, reactive changes secondary to BCG instillations, schistosomiasis, keratinizing desquamative squamous metaplasia, post-radiation changes, vaginal-type metaplasia, endocervicosis/endometriosis (müllerianosis), malakoplakia, florid von Brunn nest proliferation, cystitis/ureteritis cystica and glandularis, among others, still other cellular proliferations with concerning histological features and poorly understood etiopathogenesis like IgG4-related disease, PEComa, and pseudosarcomatous myofibroblastic proliferations (post-operative spindle cell nodule, inflammatory myofibroblastic tumor), are reviewed. Some of these diagnoses are problematic for urologists, other for pathologists, and still others for both. Interestingly, the right identification of their definitory features will allow their correct diagnoses thus avoiding overtreatment. The literature selected for this review also focuses on the immunohistochemical and/or molecular data useful to delineate prognosis.

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Xanthogranulomatous pyelonephritis presenting asProteuspreperitoneal abscess

Cited by 4 publications

References 6 publications

Retroperitoneal abscess caused by dropped renal stones

Retroperitoneal abscess caused by dropped renal stones

Mimickers of Urothelial Carcinoma and the Approach to Differential Diagnosis

Simulators of Urothelial Carcinoma

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