Any fluid-filled closed cavity or sac that is lined by an EPITHELIUM. Cysts can be of normal,abnormal,non-neoplastic,or neoplastic tissues.
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- cysts are the result of faulty embryogenesis.
- an amoeba forms a cyst when conditions are unfavourable.
- in older infants and children infection in the cyst is common.
- parasitic and nonparasitic cysts rarely occur in the spleen.
- cysts should be excised and sterilized to avoid ingestion by the definitive host.