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  • Title: Histopathologic study of corneal stromal dystrophies: a 10-year experience.
    Author: Santos LN, Fernandes BF, de Moura LR, Cheema DP, Maloney S, Logan P, Burnier MN.
    Journal: Cornea; 2007 Oct; 26(9):1027-31. PubMed ID: 17893527.
    Abstract:
    PURPOSE: To determine the frequency and describe the histopathologic features of stromal corneal dystrophies over a 10-year period. METHODS: A single-centered, retrospective analysis was performed on corneal specimens diagnosed as stromal dystrophies retrieved from the Henry C. Witelson Ophthalmic Pathology Laboratory and Registry (Montreal, Canada) over a period of 10 years. Corneal specimens obtained during keratoplasty were subjected to hematoxylin and eosin, periodic acid-Schiff, and other special staining. RESULTS: During the period of the study, 885 corneal specimens from penetrating keratoplasties were received. Twenty-six (2.9%) specimens from a total of 22 patients showed stromal corneal dystrophies: 17 (65.4%) eyes with lattice dystrophy, 5 (19.2%) eyes with combined granular/lattice ("Avellino") dystrophy, 3 (11.5%) eyes with granular dystrophy, and 1 (3.9%) eye with macular dystrophy. CONCLUSIONS: Corneal stromal dystrophies have distinct histopathologic features, which can be diagnosed with routine and special staining, particularly for combined granular/lattice (Avellino) dystrophy. Clinically, combined granular/lattice (Avellino) dystrophy can have features of both lattice and granular dystrophies, which can be misleading for diagnosis. Lattice dystrophy was the most frequent stromal dystrophy in this particular population.
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