Ten Donkelaar C S, Houwert A C, Ten Kate F J W, Lock M T W T
University Medical Center Utrecht, Heidelberglaan 100, 3584 CX, Utrecht, The Netherlands.
BMC Urol. 2017 Jul 10;17(1):55. doi: 10.1186/s12894-017-0237-z.
Arteriovenous malformations (AVM) of the urinary tract are extremely rare. To the best of our knowledge, only three case of AVM of the ureter have been described in the literature so far.
We present an additional, fourth case of an AVM of the ureter, clinically presented as asymptomatic haematuria and an obstructive process in the left ureter. Ureteroscopic evaluation revealed a fibroepithelial polypoid-like lesion in the proximal ureter. After biopsy showed a benign lesion, the lesion was treated with the 2-μm continuous wave (cw) thulium laser. Histopathological examination revealed a polypoid laesion caused by a circumscribed arteriovenous malformation. Almost four years after operation the patient remains asymptomatic and free of recurrence.
Arteriovenous malformations of the urinary tract are extremely rare. We presented a fourth case of a arteriovenous malformation of the ureter.
尿路动静脉畸形（AVM）极为罕见。据我们所知，迄今为止文献中仅描述了3例输尿管AVM病例。
我们报告另外1例输尿管AVM病例，这是第4例，临床症状表现为无症状血尿和左侧输尿管梗阻。输尿管镜检查发现输尿管近端有一个纤维上皮息肉样病变。活检显示为良性病变后，采用2微米连续波（cw）铥激光对该病变进行了治疗。组织病理学检查显示为一个由局限性动静脉畸形引起的息肉样病变。术后近4年，患者仍无症状且未复发。
尿路动静脉畸形极为罕见。我们报告了第4例输尿管动静脉畸形病例。
