- An abnormal passage from one epithelial surface to another epithelial surface. [L. a pipe, a tube]- amphibolic f., amphibolous f. a complete anal f. opening both externally and internally.- anal f. a f. opening at or near the anus; usually, but not always, opening into the rectum above the internal sphincter.- arteriovenous f. an abnormal connection, either spontaneous or surgically created, between an artery and a vein.- f. auris congenita a congenital f. anterior to the root of the helix resulting from a defect in the formation of the auricle of the ear.- blind f. a f. that ends in a cul-de-sac, being open at one extremity only. SYN: incomplete f..- BP f. SYN: bronchopleural f..- branchial f. a congenital f. in the neck resulting from incomplete closure of a branchial cleft or pouch.- Brescia-Cimino f. a direct, surgically created, arteriovenous f.; used to facilitate chronic hemodialysis.- bronchobiliary f. communication between a bronchus and the biliary system, e.g., after a ruptured hepatic abscess.- bronchocavitary f. a communication between the bronchus and a lung abscess cavity.- bronchoesophageal f. communication between a bronchus and the esophagus; may occur in association with either infection or tumors involving a bronchus or the esophagus.- bronchopleural f. communication between a bronchus and the pleural cavity; usually caused by necrotizing pneumonia or empyema; also may follow pulmonary surgery or irradiation. SYN: BP f..- bronchopleural-cutaneous f. a communication between the tracheobronchial tree and the skin that traverses the pleural space.- carotid-cavernous f. a fistulous communication, of spontaneous or traumatic origin, between the cavernous sinus and the traversing internal carotid artery; a pulsating unilateral exophthalmos and a detectable cranial bruit are common manifestations.- cholecystoduodenal f. an abnormal communication between gallbladder and duodenum, often secondary to severe cholecystitis with perforation and abscess formation; when stones are present in the gallbladder they may erode through the adjacent duodenal wall; if large stones pass into the duodenum, they may cause gallstone ileus.- chyle f. a leak of chyle from a lymph vessel to the skin surface; a complication of radical neck dissection when the thoracic duct is injured.- colonic f. 1. internal, a fistulous passage connecting the colon and a hollow viscus; 2. external, a fistulous passage connecting the colon and the skin.- complete f. a f. that is open at both ends.- congenital pulmonary arteriovenous f. abnormal congenital communication between pulmonary arteries and veins usually found in the lung parenchyma.- duodenal f. an opening through the duodenal wall and into another epithelial lined organ or through the abdominal wall.- dural cavernous sinus f. a vascular shunt between the meningeal branches of the internal or external carotid arteries, under artery and the cavernous sinus.- Eck f. transposition of the portal circulation to the systemic by making an anastomosis between the vena cava and portal vein and then ligating the latter close to the liver.- ethmoidal-lacrimal f. a fistulous communication between the lacrimal sac and the ethmoidal sinus. SYN: internal lacrimal f..- fecal f. SYN: intestinal f..- gastrocolic f. a fistulous passage connecting the stomach and the colon.- gastroduodenal f. a fistulous passage connecting the stomach to the duodenum.- gastrointestinal f. a fistulous passage connecting the stomach with the intestine.- genitourinary f. a fistulous opening into the urogenital tract. SYN: urogenital f..- gingival f. a sinus tract originating in a peripheral abscess and opening into the oral cavity on the gingiva. SYN: dental f..- horseshoe f. an anal f. partially encircling the anus and opening at both extremities on the cutaneous surface.- H-type f. a rare form of congenital tracheoesophageal f. in which there is no esophageal atresia, manifest as aspiration pneumonias. SYN: H-type tracheoesophageal f..- H-type tracheoesophageal f. SYN: H-type f..- incomplete f. SYN: blind f..- labyrinthine f. a f. between a fluid-filled compartment of the inner ear and another fluid-filled compartment in the inner ear (internal) or a space external to the inner ear as the middle ear or mastoid air cells or subarachnoid space (external); it may result in auditory and vestibular disturbances, depending on its location.- lacteal f. a fistulous opening into one of the lactiferous ducts. SYN: mammary f..- lymphatic f. a congenital f. in the neck connecting with a lymphatic vessel and giving exit to lymph.- Mann-Bollman f. a f. used in experimental investigations; a loop of ileum is isolated, the distal (aboral) end is anastomosed laterally to the duodenum or the small intestine, and the open proximal (oral) end is sutured to the abdominal wall; peristaltic waves travel from oral to aboral end, with leakage to the exterior thus reduced to a minimum.- metroperitoneal f. SYN: uteroperitoneal f..- oroantral f. a pathologic communication between the oral cavity and the maxillary sinus, most commonly a complication of maxillary or molar tooth extraction.- orofacial f. a pathologic communication between the oral cavity and the face.- parietal f. a f., either blind or complete, opening on the wall of the thorax or abdomen. SYN: thoracic f..- perilymphatic f. a f. between the vestibule of the inner ear and the middle ear through which perilymph can leak, resulting in auditory and vestibular disturbances; common sites for perilymphatic f. are the oval window through or around the footplate of the stapes or the round window through the round window membrane.- perineovaginal f. a fistulous passage connecting the perineum and the vagina.- rectolabial f. a fistulous passage connecting the rectum to the surface of a labium majus. SYN: rectovulvar f..- rectourethral f. a fistulous passage connecting the rectum and the urethra.- rectovaginal f. a fistulous passage connecting the rectum and the vagina.- rectovesical f. a fistulous passage connecting the rectum and the bladder.- rectovulvar f. SYN: rectolabial f..- reverse Eck f. side-to-side anastomosis of the portal vein with the inferior vena cava and ligation of the latter above the anastomosis but below the hepatic veins; the blood from the lower part of the body is thus directed through the hepatic circulation.- salivary f. a pathologic communication between a salivary duct or gland and the cutaneous surface.- T-E f. SYN: tracheoesophageal f..- Thiry f. an artificial f. for collecting the intestinal secretions of an animal for experimental purposes; a loop of intestine is isolated, its vascular and nervous connections are preserved, after the continuity of the intestinal tract is restored by an end-to-end anastomosis; one end of the isolated segment is closed, the other attached to the skin of the abdomen.- Thiry-Vella f. experimental isolation of a segment of intestine in an animal; a loop of intestine is isolated, its vascular and nervous connections are preserved, and continuity of the intestinal tract is restored by an end-to-end anastomosis, each end of the isolated segment is connected to an independent opening in the abdominal wall. SYN: Vella f..- tracheobiliary f. a rare congenital anastomosis between an accessory bronchus and aberrant biliary duct system.- tracheoesophageal f. fistulous passage connecting the trachea and esophagus; often associated with esophageal atresia; may also be acquired; in the adult, etiology is similar to that of bronchoesophageal f.. SYN: T-E f..- urethrocutaneous f. f. between urethra and penile skin; most likely a complication of hypospadias repair.- urethrovaginal f. a f. between the urethra and the vagina.- urogenital f. SYN: genitourinary f..- uteroperitoneal f. a fistulous passage connecting the cavity of the uterus with the peritoneal cavity. SYN: metroperitoneal f..- vesicocolic f. SYN: colovesical f..- vesicouterine f. a f. between the bladder and the uterus.- vesicovaginal f. f. between the bladder and the vagina.- vitelline f. a f. between the umbilicus and the terminal ileum along the course of a persistent vitelline cord. See Meckel diverticulum.
* * *fistula see CASSIA FISTULA1) an abnormal passage that leads from an abscess or hollow organ or part to the body surface or from one hollow organ or part to another and that may be surgically created to permit passage of fluids or secretions <a congenital tracheoesophageal \fistula> <an arteriovenous \fistula was reconstructed in the right arm for dialysis (Pasteur Rasuli )(et al)>2) FISTULOUS WITHERS
* * *n. (pl. fistulae)an abnormal communication between two hollow organs or between a hollow organ and the exterior. Many fistulae are caused by infection or injury. For example, an anal fistula may develop after an abscess in the rectum has burst (see ischiorectal abscess), creating an opening between the anal canal and the surface of the skin. (See also vesicovaginal fistula.) Crohn's disease has a particular tendency to cause fistulae to form between adjacent loops of bowel or from bowel to bladder, vagina, or skin. Some fistulae result from malignant growths or ulceration: a carcinoma of the colon may invade and ulcerate the adjacent wall of the stomach, causing a gastrocolic fistula. Other fistulae develop as complications of surgery: after gall-bladder surgery, for example, bile may continually escape to the surface through the wound producing a biliary fistula. Fistulae may also be a form of congenital abnormality; examples include a tracheo-oesophageal fistula (between the windpipe and gullet) and a rectovaginal fistula (between the rectum and vagina).An arteriovenous fistula is a surgical connection between an artery and a vein, usually in a limb, to create arterial and venous access for haemodialysis. It can be a direct anastomosis between the artery and vein or a loop connecting the two, which may be autogenous or prosthetic.
* * *fis·tu·la (fisґtu-lə) pl. fistulas, fisґtulae [L. â€œpipeâ€] an abnormal passage or communication, usually between two internal organs, or leading from an organ to the surface of the body; see illustration. Such passages may also be created surgically for arteriovenous access or experimentally to obtain body secretions for physiologic study. fistulous adj
Various types of fistulae, designated according to site or to the organs with which they communicate. (A), Genitourinary fistulae; (B), anal fistulae.
Medical dictionary. 2011.