Abstract
The author has recently experienced a relatively large median anterior maxillary cyst, 3.0×2.0×1.5cm3, in a boy of 16, youngest of the 20 cases ever reported in Japan.
From the round shadow in the roentogenogram, the cylindrical epithelium of the wall of the cyst and the swelling towards the lip, the author concluded that the tumor grew from the area near the nasal side of the canalis incisivus.
