Agenesis
Agenesis
Agenesis (/əˈdʒɛnɪsɪs/; from Ancient Greek: ἀ- a-, "without" + γένεσις genesis, "origin") is a medical term referring to the absence of an organ due to its failure to develop during embryonic growth. This condition can affect various parts of the body, including the kidney, lung, or brain.
Etymology
The term "agenesis" is derived from the Ancient Greek words "a-" meaning "without" and "genesis" meaning "origin". It is used in medical terminology to denote the absence of normal development of a specific organ or tissue.
Types of Agenesis
There are several types of agenesis, each named for the organ or tissue that failed to develop. Some of the most common include:
- Pulmonary agenesis: This is a rare congenital disorder characterized by the absence of one or both lungs.
- Renal agenesis: This condition involves the absence of one or both kidneys at birth.
- Agenesis of the corpus callosum: This is a rare birth defect in which the structure that connects the two hemispheres of the brain (the corpus callosum) is partially or completely absent.
Symptoms and Diagnosis
The symptoms of agenesis vary widely and depend on the organ or tissue that is missing. Diagnosis typically involves imaging studies such as ultrasound, MRI, or CT scan to visualize the absence of the organ or tissue.
Treatment
Treatment for agenesis also varies depending on the organ or tissue that is missing. In some cases, no treatment may be necessary. In others, surgery or other medical interventions may be required.
See Also
External links
- Medical encyclopedia article on Agenesis
- Wikipedia's article - Agenesis
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