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Bluish swelling that occurs on the soft tissue over an erupting tooth
An eruption cyst, or eruption hematoma, is a bluish swelling that occurs on the soft tissue over an erupting tooth. It is usually found in children. The fluid in the cyst is sometimes clear creating a pale-coloured cyst although often they are blue. An eruption cyst (eruption hematoma) is a developmental soft-tissue cyst of odontogenic origin that forms over an erupting tooth. most commonly seen anterior to first molar
The fibrous capsule shows inflammatory cells possibly as a result of trauma.
The epithelial lining of the cyst is separated from the alveolar mucosa by a thin layer of fibrous tissue with the epithelial tags of cysticepithelium facing those of the alveolar mucosa.
The cystic cavity may contain blood in addition to the yellowish protein fluid as a result of trauma.
