PMC7103053_01
Gross specimen image. The specimen was sized at approximately 10 mm in diameter.
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fig1
The mass was approximately 10 mm in diameter and was covered with normal mucosa (Figure 1).
Computed tomography scan showing a well-defined, rounded, high-density mass with a tiny pedicle on the base of the tongue: (a) axial and (b) saggital.
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fig2
We confirmed the well-defined, rounded, high-density mass with a tiny pedicle on the base of the tongue in prior cervical spine computed tomography (CT) images taken by the orthopedic department 6 months before the patient's first visit to our department (Figure 2).
Histopathologic images. (a) Histologic examination shows well-circumscribed bone tissue (H&E x20). (b) Mature bone is surrounded by fibrous connective tissue and covered with stratified squamous epithelium (H&E x200).
CRIOT2020-3498915.003.jpg
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fig3
Histological examination revealed that the mass consisted of circumscribed bone, and it was surrounded by benign-appearing stratified squamous epithelium (Figure 3).