F2Ch34: This indentation, in the lining of the cyst, can be matched with one of the indentations seen in figure one. The epithelial column that projects to the left, and is in continuity with the indentation, is an immature follicle. Another follicle, to the right, is directed toward the cyst but is not in continuity on this section. By its direction - see figure one - it can be accepted as having continuity with (i.e., origin from) the lining of the cyst. In the component closest to the lining of the cyst, a vellus hair is present in the lumen of this small follicle. There is a thin layer of brightly acidophilic, keratinized debris along the surface of the epithelial lining of the cyst; beyond this layer, the keratinized debris is loosely laminated.
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