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Examples of atresia include:
- Aural atresia, a congenital deformity where the ear canal is underdeveloped.
- Biliary atresia, a condition in newborns in which the common bile duct between the liver and the small intestine is blocked or absent.
- Choanal atresia, blockage of the back of the nasal passage, usually by abnormal bony or soft tissue.
- Esophageal atresia, which affects the alimentary tract and causes the esophagus to end before connecting normally to the stomach.
- Follicular atresia, degeneration and resorption of the ovarian follicles.
- Imperforate anus, malformation of the opening between the rectum and anus.
- Intestinal atresia, malformation of the intestine, usually resulting from a vascular accident in utero.
- Microtia, absence of the ear canal or failure of the canal to be tubular or fully formed (can be related to Microtia, a congenital deformity of the pinna, or outer ear).
- Ovarian follicle atresia, the degeneration and subsequent resorption of one or more immature ovarian follicles.
- Potter sequence, congenital decreased size of the kidney leading to absolutely no functionality of the kidney, usually related to a single kidney.
- Pulmonary atresia, malformation of the pulmonary valve in which the valve orifice fails to develop.
- Renal agenesis, only having one kidney.
- Tricuspid atresia, a form of congenital heart disease whereby there is a complete absence of the tricuspid valve, and consequently an absence of the right atrioventricular connection.
- Vaginal atresia, a congenital occlusion of the vagina or subsequent adhesion of the walls of the vagina, resulting in its occlusion.
- Dorland's illustrated medical dictionary. Dorland, W. A. Newman (William Alexander Newman), 1864-1956. (32nd ed.). Philadelphia, PA: Saunders/Elsevier. 2012. p. 174. ISBN 978-1-4160-6257-8. OCLC 706780870.CS1 maint: others (link)
- Christensen, L. "Understanding Atresia, Microtia, and the Baha System". audiologyonline. Retrieved 14 April 2020.
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- Schumacher, Kurt. "Pulmonary atresia". PubMed Health. Retrieved 11 September 2012.
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