(a) Photomicrograph of sagittally sectioned full-thickness wedge resection showing a thickened eyelid with noncaseating granulomas infiltrating dermis, orbicularis oculi muscle, and tarsus. The mucocutaneous junction is seen (arrow). There is absence of the meibomian glands (hematoxylin-eosin, ×20). The eyelid is designed as follows: tp = tarsal plate; o = orbicularis oculi muscle; d = dermis. (b) Cross-section through the meibomian gland orifice (arrow) with sarcoidal obliteration of the meibomian glands (asterisk) (hematoxylin-eosin, ×100). (c) Tarsal (asterisk) granulomas with multinucleated giant cells and normal overlying palpebral conjunctiva (hematoxylin-eosin, ×200). (d) Higher magnification view of tarsus showing noncaseating granuloma containing epitheliod histiocytes (hematoxylin-eosin ×400).
