Lower respiratory tract infection: Lower respiratory tract infection (LRTI), while often used as a synonym for pneumonia, can also be applied to other types of infection including lung abscess and acute bronchitis. Symptoms include shortness of breath, weakness, fever, coughing and fatigue.Arteriovenous fistulaBronchopleural fistula: A bronchopleural fistula (BPF) is a fistula between the pleural space and the lung. It sometimes develops following pneumonectomy or an infection.Fistulotomy: A fistulotomy is the surgical opening of a fistulous tract. They can be performed by excision of the tract and surrounding tissue, simple division of the tract, or gradual division and assisted drainage of the tract by means of a seton; a cord passed through the tract in a loop which is slowly tightened over a period of days or weeks.Gastrocolic reflex: The gastrocolic reflex or gastrocolic response is one of a number of physiological reflexes controlling the motility, or peristalsis, of the gastrointestinal tract. It involves an increase in motility of the colon in response to stretch in the stomach and byproducts of digestion in the small intestine.Pneumobilia: Pneumobilia is the presence of gas in the biliary system. Causes include a biliary-enteric anastomosis, an incompetent sphincter of Oddi and spontaneous biliary-enteric fistula.Pancreatic fistulaRectovaginal fistulaVesicovaginal fistulaEsophageal atresiaPneumaturia: Pneumaturia is the passage of gas or "air" in urine. This may be seen or described as "bubbles in the urine".