Dermoids occur commonly and have been found in numerous localities in the body. The most frequent locations are about the orbit, neck and coccygeal region, where different germinal layers meet during development. Dermoids are also found in the subcutaneous tissue, ovaries, mediastinum, skull, pia mater, optic nerve, eyelid, cornea, face, nose, tongue and pharynx. Included in the foregoing list should be the rare sites. One of these is the mesentery (Montgomery and Morest1 reported eight cases), and a second is the tonsil, where only three cases, including the present one, have been reported.
Henrot2 in 1880 reported the removal of a tumor from the palatine arch but considered it to be a sebaceous cyst, though he realized that there are "no sebaceous glands in the mucosa of the palate under normal conditions." A histologic
Fig. 1.—A shows the left tonsil, and B, the cystic right tonsil
ROSENBERG MM. DERMOID CYST OF THE TONSIL. Arch Otolaryngol. 1935;22(5):631–633. doi:10.1001/archotol.1935.00640030648009
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