Objective: To report a case of congenital pelvic arteriovenous malformation (pAVM) with urinary retention. Clinical Presentation and Intervention: A 39-year-old male patient presented with inability to void urine for 8 h. He did not have a history of dysuria or fever, but had increasing urinary frequency and difficulty in voiding over 2 years. Examination revealed a suprapubic mass without external signs of vascular anomaly. A huge, soft, irregular, non-pulsating mass was felt rectally. This mass did not disappear on urinary bladder decompression. Subsequent ultrasound and CT scan revealed pAVMs filling most of the pelvic cavity. Conclusion: To our knowledge, this is the first report of a male patient with congenital pAVM presenting with urinary retention, emphasizing the need for a high index of suspicion for pAVM to avoid potential severe bleeding during suprapubic catheterization for urinary drainage.

No abstract

Para ganglia is a rare bladder tumor may occur in all of the age groups. It accounts for less than 0.06% of all of the bladder tumors. It is more common in females.Typically they are extra adrenal pheochromocytoma and arise from the ganglion (Chromaffin) cells of the bladder wall. Some of them are functioning and secrets chatecholamines, others are not. Some of them are malignant and can metastasis. However approximately 10% of them possess the capacity to invade despite their lack of mitosis and cellular dissociation which usually associated with malignant tumors. We present this case because its rarity, difficult preoperative diagnosis and the lack of related proper guide lines. Currently their treatment generally is not unified. Hence it is advisable to manage such cases with a multidisciplinary approach.