Leiomyomatous hamartoma is a hamartoma which appears as a painless, soft polypoid (polyp-like) mass. It usually is found on the tongue, around the nasopalatine foramen, or in the nasopharynx. The lesion is composed of a proliferation of fusiform and spindle smooth muscle cells.
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Leiomyomatous hamartoma Wikipedia(Text) CC BY-SA