Congenital epulis. An electron microscopic observations of two cases.

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Abstract
Two cases of congenital epulis occurring in the gingiva at the site where the lower deciduous incisors were to erupt are described. The first patient was a 7day-old female infant. Her epulis was diagnosed, histopathologically, as a granular cell tumor. Electron microscopy revealed that the tumor cells were large with small eccentric nuclei. The cells were filled with granular structures. These granular substances varied in size and electron density. Case 2 involved a 37 day-old male infant. A histopathological diagnosis of fibromatosis was made. Electron micrographs showed a proliferation of cells which resembled fibroblasts. These cells varied in shape, including some with thin, long processes. Abundant reticular and collagen fibers were present in the stroma. In both cases, the postoperative course was uneventful without recurrence.

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