[Diagnosis and treatment experience of transurethral resection for paraganglioma of urinary bladder in 8 cases]

Objective: To discuss the experience of diagnosis and treatment of transurethral resection of paraganglioma in urinary bladder. Methods: This retrospective study included 8 patients who underwent transurethral resection of paraganglioma in bladder from October 2009 to April 2015. Four males and 4 females were enrolled. The age ranged from 33 to 77 years (mean: 50.4 years), with a clinical course from 1 month to 8 years. Five cases presented with hypertension and 4 had high level of noradrenaline in blood. Preoperative ultrasound, CT and MRI were performed on every patient and the results showed all tumors were solitary and limited in bladder wall. Six patients received conventional transurethral electroresection and the other 2 patients received transurethral resection with thulium laser.Postoperative follow-up of each case was recorded. Results: All tumors were excised successfully without converting to open surgery. The maximum diameter of tumors ranged from 1.0 to 4.5 cm (mean: 2.3 cm), operative time varied from 15 to 35 min (mean: 28.1 min) and intraoperative blood loss ranged from 20 to 50 ml (mean: 31.9 ml). The variation of blood pressure during operation was 10 to 160 mmHg (mean: 66.3 mmHg). The loss of follow-up occurred in 1 case, tumor recurrence occurred in 1 case at 3 months after surgery and the follow-up data of other patients was normal. Conclusions: The diagnosis of paraganglioma in bladder should be combined with clinical symptoms, biochemical and imaging examination for some cases. Transurethral resection of tumors is a safe and reliable surgical manner.