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Smooth muscle hamartoma of the hard palate
1Paediatric Dentistry, Department and School of Dental Studies, The University of Liverpool, Liverpool, UK.
Abstract:
A small polypoid lesion was removed from the incisive papilla region of a healthy female aged 8 years. It was composed of non-cycling smooth muscle fibres that were immunoreactive for various muscle antigens, surrounded by basement membrane containing collagen IV, arranged as bundles and mixed with CD34(+) interstitial cells, mast cells, dendrocytes and nerves. The lesion could be attributed to dysgenesis affecting media of vessels emerging from the incisive foramen. Intra-oral smooth muscle hamartomas tend to favour regions featuring complex developmental events.
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