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Related to fistulous: fistulous withers


(fĭs`cho͝olə), abnormal, usually ulcerous channellike formation between two internal organs or between an internal organ and the skin. It may follow a surgical procedure with improper healing, or it may be caused by injury, abscess, or infection with penetration deep enough to reach another organ or the skin. When open at only one end it is called an incomplete fistula or sinus. The most common sites of fistula are the rectum and the urinary organs, but almost any part of the body may be affected. Rectal fistulas are often associated with colitis, cancercancer,
in medicine, common term for neoplasms, or tumors, that are malignant. Like benign tumors, malignant tumors do not respond to body mechanisms that limit cell growth.
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, sexually transmitted diseasessexually transmitted disease
(STD) or venereal disease,
term for infections acquired mainly through sexual contact. Five diseases were traditionally known as venereal diseases: gonorrhea, syphilis, and the less common granuloma inguinale, lymphogranuloma venereum, and
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, and other disorders. Usually a fistula requires surgery. In horses an abscess on the withers from chafing and infection is termed a fistula.



an abnormal passage between hollow organs or between an organ, body cavity, or focus of disease and the body surface. Usually in the form of a narrow canal lined with epithelium or granulations, it continuously discharges pus, mucus, bile, urine, or feces.

Congenital fistulas, for example, umbilical fistulas, are developmental anomalies. Acquired fistulas result from such chronic inflammations as osteomyelitis, from tumors, or from injuries. Fistulas are usually treated by surgery.

It is sometimes necessary to create artificial fistulas surgically. They may connect hollow organs, in which case they are called internal fistulas, or anastomoses. An example is gastroenteroanastomosis in cicatricial stenosis of the outlet of the stomach.

Gastrostomy is the establishment of an external fistula, or stoma, for artificial feeding. External fistulas also permit the discharge of urine or feces. For example, cystostoma is a fistula of the urinary bladder formed when the urethra is compressed by a tumor. With external fistulas, care must be taken to avoid irritating or infecting the surrounding skin.


Struchkov, V. I. Gnoinaia khirurgiia, 2nd ed. Moscow, 1967.


An abnormal congenital or acquired communication between two surfaces or between a viscus or other hollow structure and the exterior.


In ancient Roman construction, a water pipe of lead or earthenware.


Pathol an abnormal opening between one hollow organ and another or between a hollow organ and the surface of the skin, caused by ulceration, congenital malformation, etc.
References in periodicals archive ?
Few centres including our own have shown improved visualisation of fistulous tracts and their relationship to the surrounding perianal structures using MR fistulogram, a procedure involving injection of diluted gadolinium into the tract using an infant feeding tube.
One case was started vaginally and converted to laparotomy, after excision of the fistulous tract.
The reduction of the fibrinosanguinolent exudate, pruritus, presence of fistulous trajectories and exit of kunkers was verified in that evaluation; as well as the reduction of the granuloma, leveling with healthy skin and the formation of scabs.
In the present case, injury on oesophageal wall due to dog bite at neck region and further local tissue reaction might have caused formation of fistulous tract connecting wound on skin.
Total skin conservation approach to the surgery of the anorectal cryptoglandular intermuscular fistulous abscess and fistula with special reference to the "plastic saucerisation (marsupialisation) operation of the ischiorectal fossa.
b) Subsequent transverse gray scale US image shows echogenic foci representing air in the small inferior hypoechoic cyst with the presacral mass (within calipers) suggesting continuous fistulous connection (arrow).
Because of high and complex nature of the fistulous tract, a part of the fistula was laid open and the remaining was kept on a seton, allowing the fibrosis to heal the tract.
Probing of the fistulous tracks revealed bone defect just on the right side, which was seen on CT (Figure 1).
Usually, the fistulous tract is circumscribed, dissected and closed to form the urethral layer by suture or sealant.
Coronary angiography revealed a small fistulous communication between the proximal circumflex artery and the pulmonary artery (Fig.
During this procedure, the location of the fistulous tract should be meticulously mapped.