| congenital pulmonary arteriovenous fistula | Abnormal congenital communication between pulmonary arteries and veins usually found in the lung parenchyma. (05 Mar 2000) |
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| cutaneous fistula | An abnormal passage or communication leading from an internal organ to the surface of the body, as bronchocutaneous, vesicocutaneous, renocutaneous, colocutaneous, etc. (12 Dec 1998) |
| salivary fistula | A pathologic communication between a salivary duct or gland and the cutaneous surface or the oral mucus. (05 Mar 2000) |
| salivary gland fistula | An abnormal passage between a salivary duct or gland and the cutaneous surface, or into the oral cavity through other than a normal pathway. (12 Dec 1998) |
| hepatic fistula | A fistula leading to the liver. (05 Mar 2000) |
| hepatopleural fistula | A fistula between the liver and the pleural space. (05 Mar 2000) |
| pulmonary fistula | A parietal fistula communicating with the lung. (05 Mar 2000) |
| horseshoe fistula | An anal fistula partially encircling the anus and opening at both extremities on the cutaneous surface. (05 Mar 2000) |
| H-type fistula | <gastroenterology, surgery> A rare form of congenital tracheoesophageal fistula in which there is no oesophageal atresia, manifest as aspiration pneumonias. Synonym: H-type tracheoesophageal fistula. (05 Mar 2000) |
| H-type tracheoesophageal fistula | <gastroenterology, surgery> A rare form of congenital tracheoesophageal fistula in which there is no oesophageal atresia, manifest as aspiration pneumonias. Synonym: H-type tracheoesophageal fistula. (05 Mar 2000) |
| sigmoidovesical fistula | A fistula between sigmoid colon and urinary bladder. (05 Mar 2000) |
| spermatic fistula | A fistula communicating with the testis or any of the seminal passages. (05 Mar 2000) |
| dental fistula | <dentistry> A sinus tract originating in a peripheral abscess and opening into the oral cavity on the gingiva. (12 Dec 1998) |
| digestive system fistula | An abnormal passage communicating between any parts of the digestive system or between any part of the digestive system and other organs. (12 Dec 1998) |
| duodenal fistula | An opening through the duodenal wall and into the peritoneal cavity, into another organ, or through the abdominal wall. (05 Mar 2000) |