Migration of a Hem-o-Lok Clip to the Ureter Following Laparoscopic Partial Nephrectomy Presenting With Lower Urinary Tract Symptoms / 대한배뇨장애요실금학회지

We report a case of ureteral migration of a surgical clip after partial nephrectomy in which the clip was misdiagnosed as a ureteral stone. A 37-year-old woman had undergone laparoscopic partial nephrectomy of right renal cell carcinoma at another hospital 2 years previously. Postoperatively, she had gradually acquired lower urinary tract symptoms. Then, she complained of sudden right flank pain for a week. A plain X-ray and enhanced abdominopelvic computed tomography scan were performed. A 0.5 cmx1.0 cm right upper ureteral opacity with borderline hydronephrosis was seen but could not be found on the X-ray. Ureteroscopy revealed a medium-sized Hem-o-Lok clip on the right upper ureter that was removed with a stone basket. We concluded that a Hem-o-Lok clip used for collecting system sealing had migrated to the ureter and had been misdiagnosed as a ureteral stone on a computed tomography scan.

Potassium-Titanyl-Phosphate Laser Photoselective Vaporization of the Prostate in Patients with Benign Prostatic Hyperplasia with Detrusor Underactivity: Influence on Detrusor Pressure

PURPOSE: Potassium-titanyl-phosphate laser photoselective vaporization of the prostate (PVP) is a safe and effective treatment for patients with symptomatic benign prostatic hyperplasia (BPH). The aim of this study was to assess the influence and the effect of PVP in BPH patients with detrusor underactivity. MATERIALS AND METHODS: We evaluated 21 patients with detrusor under-activity treated with PVP for BPH from January 2006 to December 2007. Detrusor underactivity was defined as detrusor pressure at maximal flow rate (Qmax) of less than 30 cmH2O and Qmax of less than 15 ml/s. Urodynamic studies were performed and international prostate symptom score (IPSS) and quality of life (QoL) scores were assessed preoperatively and at 6 months postoperatively. RESULTS: There were significant improvements in Qmax, voiding urine volume, post-void residual urine volume, IPSS, and QoL scores at 6 months after PVP treatment. However, patients did not show significant changes in maximal bladder capacity, bladder compliance, or detrusor pressure at Qmax. CONCLUSIONS: Even though BPH patients had detrusor underactivity, PVP was an effective surgical procedure. However, PVP did not make any significant difference on detrusor pressure at Qmax in 6 months.

Spontaneous Renal Artery Dissection Complicated by Renal Infarction / 대한비뇨기과학회지

A previously healthy 44-year-old woman, with no notable medical history developed left flank pain. To rule out left renal infarction, enhanced abdominal computed tomography(CT) was done and a wedge shaped hypointense lesion was identified in the left posteromedial aspect of the interpolar region. Renal angiography revealed an isolated renal artery dissection that was causing renal infarction due to narrowing of the main stem of the left renal artery. The patient experienced pain with severe uncontrolled hypertension. The patient was successfully treated by percutaneous angioplasty and renal artery stenting.

Lymphoepithelioma-like Carcinoma of the Renal Pelvis / 대한비뇨기과학회지

Lymphoepithelioma was originally described as a neoplasm in the nasopharynx. Tumors with histologic features similar to those of nasopharyngeal lymphoepithelioma have been identified in anatomic sites other than the nasopharynx, such as the salivary gland, lung, thymus and stomach; these tumors have been termed lymphoepithelioma-like carcinoma(LELC). The etiology and pathogenesis of this neoplasm in the renal pelvis is not clear. We have experienced a case of lymphoepithelioma-like carcinoma of the renal pelvis and we report here on this along with a brief review of the relevant literature.

Lymphoepithelioma-like Carcinoma of the Renal Pelvis / 대한비뇨기과학회지

Lymphoepithelioma was originally described as a neoplasm in the nasopharynx. Tumors with histologic features similar to those of nasopharyngeal lymphoepithelioma have been identified in anatomic sites other than the nasopharynx, such as the salivary gland, lung, thymus and stomach; these tumors have been termed lymphoepithelioma-like carcinoma(LELC). The etiology and pathogenesis of this neoplasm in the renal pelvis is not clear. We have experienced a case of lymphoepithelioma-like carcinoma of the renal pelvis and we report here on this along with a brief review of the relevant literature.