Although chalazion is a fairly frequent clinical pathologic entity in the eyelids, it is rather surprising that there should be diverse opinions among ocular pathologists regarding the exact seat of its origin and its pathogenesis. It is my purpose in this paper to review these aspects, with special reference to what has been written within the last two decades. ANATOMY of EYELIDS In order to give a clearer conception of the matters to be touched on, it will first be necessary to consider the normal gross anatomy of the region of the lids. For this, I cannot do better than to quote at length from a recent paper by Bailey1 as follows: A sagittal section of the upper lid reveals the following in their sequence from before backward: skin, superficial fascia, pars palpebralis of the orbicularis oculimuscle, the prolongation of the aponeurosis of the levator palpebrae superioris, the
DVORAK-THEOBALD G. PATHOGENESIS AND PATHOLOGIC ANATOMY OF CHALAZION. Arch Ophthalmol. 1935;14(5):817–824. doi:10.1001/archopht.1935.00840110131009
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