True osteomata of the tongue, comprised solely of dense bone, are very rare lesions. In fact, tumors of the tongue containing bone are almost as unusual as osteomata. When one considers that the tongue is an active muscular organ subject to trauma, especially at its tip and margins, the relative lack of calcified tumors is surprising.
A review of the world's literature reveals a total of eight cases since Monsarrat1 published the first case report, in 1913. An asymptomatic lesion the size of a small cherry was accidentally discovered in a 32-year-old woman. The tumor was pedunculated, freely mobile, and located 2 to 3 mm. lateral to the "sulcus terminalis." The mass was easily removed. Microscopic sections revelaed a regular, dense, bony tissue with a few narrow Haversian canals. The bony lamellae formed a circular or oval pattern with only a few osteocytes.
Hirsch2 reported the second case
PEIMER R, DREIZIN DH, MASUGI Y. Osteoma of the Tongue. AMA Arch Otolaryngol. 1956;64(2):148–150. doi:10.1001/archotol.1956.03830140064009
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