Abstract • Of 128 cysts diagnosed clinically and pathologically as epidermoids and dermoids, 12 lesions were discovered that were lined by nonkeratinizing squamous epithelium with variable numbers of admixed goblet cells. Five lesions did not contain any adnexal structures in their walls and were designated as simple conjunctival cysts; seven lesions additionally displayed appendages in their walls and were diagnosed as conjunctival dermoids. Clinically, this group of 12 cysts differed from classic epidermoids and dermoids by their overwhelming superomedial location and absence of associated osseous defects. It is proposed that these nonkeratinizing cysts represent sequestrations of conjunctival-type epithelium, analogous to the displacements of keratinizing surface epidermis that are most commonly responsible for the production of classic epidermoids and dermoids. It is possible to confuse conjunctival cysts and dermoids with mucoceles. References 1. Nicholson DH, Green WR: Tumors of the eye, lids and orbit , in Harley RD (ed): Pediatric Ophthalmology . Philadelphia, WB Saunders Co, 1975, p 1001. 2. Duke-Elder S, Leigh AG: Diseases of the Outer Eye, Cornea and Sclera: System of Ophthalmology . St Louis, CV Mosby Co, 1965, vol 8, pt 2, pp 1137-1142. 3. Henderson JW: Orbital Tumors . Philadelphia, WB Saunders Co, 1973, pp 86-95. 4. Pfeiffer R, Nicholl R: Dermoid and epidermoid tumors of the orbit . Arch Ophthalmol 40:639-664, 1948.Crossref 5. Carey PC: Epidermoid and dermoid tumors of the orbit . Br J Ophthalmol 42:225-230, 1958.Crossref 6. Judisch GF, Maumenee AE: Large orbital conjunctival cyst after enucleation . Am J Ophthalmol 83:49-51, 1977. 7. Lever WF, Schaumberg-Lever G: Histopathology of the Skin . Philadelphia, JB Lippincott Co, 1975, pp 465-466. 8. Brownstein MH, Helwig EB: Subcutaneous dermoid cysts . Arch Dermatol 107:237-242, 1973.Crossref 9. Lucas RB: Pathology of Tumours of the Oral Tissues . London, Churchill-Livingston, 1976, pp 376-387. 10. Russell DS, Rubinstein L: Pathology of Tumors of the Nervous System . Baltimore, Williams & Wilkins Co, 1971, pp 16-19. 11. Burger PG, Vogel FS: Surgical Pathology of the Nervous System and Its Coverings . New York, John Wiley & Sons Inc, 1976, pp 54, 69-70, 107, 137, 502-503, 532-533.
Archives of Ophthalmology – American Medical Association
Published: Aug 1, 1978
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