Rhabdomyomatous mesenchymal hamartoma of oral cavity: an unusual location for such a rare lesion

We first report two cases of rhabdomyomatous mesenchymal hamartoma (RMH) arising as polypoid masses of oral cavity. This is an unusual site for such a lesion, as all cases of RMH reported in the English literature (approximately 25 cases) have typically been located in the skin,with only one case occurring in the nares.The present case widens the anatomic location of RMH, indicating the oral cavity as a possible involved site. This is not only of academic interest, as both fetal rhabdomyoma and embryonal rhabdomyosarcoma (botryoid subtype) may present as polypoid masses in the same sites