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Recurrent Urinary Tract Infection by Bladder Stone Resulting from Subureteral Injection Polydimethylsiloxane (Macroplastique®) for Treatment of Vesicoureteral Reflux
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Jae Young Choi, Hyun Tae Kim, Young Hwii Ko, Young Hwan Lee, Phil Hyun Song
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Urogenit Tract Infect 2016;11(2):62-65. Published online August 31, 2016
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 Abstract
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- While endoscopic subureteral injection of bulking agents has become a first-line therapy for the treatment of vesicoureteral reflux (VUR), mainly due to its high success rates with minimal complications, polydimethylsiloxane (PDS) administration can be associated with bladder calcification in a minority of patients. A 10-year-old girl with prior history of subureteral administration of PDS as a treatment modality for bilateral VUR six years ago showed recurrent lower urinary tract symptoms, including dysuria, frequency, and urgency, for the past 6 months. She was admitted to our institution for right pyelonephritis with hydronephrosis. Radiologic examination had revealed two yellowish impacted stones attached to the previous site of PDS administration without recurrence of VUR. The stones were completely removed by cystolitholapaxy. This study suggests that such a late-complication should be considered in patients with recurrent urinary tract infection or lower urinary tract symptom despite complete disappearance of VUR by prior subureteral administration therapy.
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Encrusted Cystitis and Pyeloureteritis in Patient with Hepatocellular Carcinoma
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Jea Whan Lee, Whi-An Kwon, Seung Chol Park, Tae Hoon Oh, Young Hwan Lee, Joung Sik Rim
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Korean J Urogenit Tract Infect Inflamm 2015;10(1):49-52. Published online April 30, 2015
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Abstract
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- Encrusted cystitis and pyeloureteritis are rare chronic infectious conditions characterized by mucosal inflammation and encrustations of the urinary tract. It is caused by fastidious growing urea splitting microorganisms, mainly Corynebacterium. Herein, we report an unusual case of an 80-year-old man with encrusted cystitis and pyeloureteritis who was previously treated with transcatheteral arterial chemoembolization for hepatocellular carcinoma. Abdomino-pelvic computerized tomography showed a bilateral hydronephrosis with calcifications of renal pelvis, ureter, and bladder. Cystoscopy showed calcified bladder mucosa with necrosis and bleeding. After transurethral removal of calcified plaques, the patient was treated with antibiotic and oral urine acidification. One-month follow-up cystoscopy showed that inflammation was improved and calcification was significantly reduced.
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