AST is commonly associated with pyriform sinus-thyroid fistula in children. Radiologic findings of AST are documented in a few reports. We report a new sign we term the "emerging echogenic tract sign," which reflects a patent air-containing pyriform sinus-thyroid fistula on follow-up US. Recognition of this sign is an important finding suggesting an associated pyriform sinus-thyroid fistula in ...

Laparoscopic management in a case of congenital urethroanal fistula with a normal anterior urethra in a 5-month-old male child is reported. A congenital H-type urethroanal fistula is a rare entity. Management of such fistula has always been surgical, ranging from perineal dissection, posterior saggital approach, to abdomino-perineal approach. We describe a minimally invasive laparoscopic method...

We report a case of Mirizzi syndrome type II associated with biliary enteric fistula. It is important to identify this combination early, as it is associated with high morbidity. In our case, intraoperative findings were cholecystoduodenal fistula and communication of Hartmann's pouch with common bile duct (CBD). A subtotal cholecystectomy with excision of cholecystoduodenal fistula was perform...

Vesicovaginal fistula is an abnormal communication between the bladder and vagina and represents the most frequent type of fistula in the urinary tract. The most common cause in Brazil is iatrogenic fistula, secondary to histerectomia. Classically these women present continuous urinary leakage from the vagina and absence of micturition, with strong negative impact on their quality of life. We p...

Whenever possible it is suggested that a native arteriovenous fistula is created and used for haemodialysis, as it is superior to an arteriovenous graft and to a central venous catheter. (Level III evidence) When a native arteriovenous fistula is not possible, an artificial arteriovenous graft should be used in preference to a central venous catheter. Arteriovenous grafts have similar patency t...

An idiopathic renal arteriovenous (AV) fistula is a rare malformation of the kidney that may present insidiously with heart failure or hematuria. The treatment may be challenging due to large fistula size that may limit endovascular management. The authors report a case of an 85-year-old Caucasian woman who presented with acute heart failure and was found to have a right renal AV fistula. Since...

OBJECTIVE To present the experience in the operative management of labyrinthine fistula caused by cholesteatoma. METHODS The clinical charts of 16 patients who underwent surgical procedures for cholesteatoma complicated by labyrinthine fistula between 2003 and 2008 were reviewed retrospectively. In this period, 108 ears were operated for cholesteatoma. In each patient, the site and size of th...

OBJECTIVE To establish an animal model of a vesicovaginal fistula that can later be used in the development of new treatment modalities. MATERIALS AND METHODS Six female pigs of Landrace/Yorkshire breed were used. Vesicotomy was performed through open surgery. An standardized incision between the bladder and the vagina was made, and the mucosa between them was sutured together with absorbable...

A 31-year-old man with epiphora and mucous discharge from a traumatic lacrimal fistula underwent a computed tomographic dacryocystogram, revealing a fistula extending from the anterior ethmoid air cells through the lacrimal sac to the overlying skin with coexisting nasolacrimal duct obstruction. Endoscopic dacryocystorhinostomy enabled complete marsupialization of the lacrimal sac and agger nas...