S B Palydowycz

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We studied 44 patients who had dacryocystorhinostomy for primary acquired complete nasolacrimal duct obstruction. The lacrimal sac and nasal mucosa adjacent to the osteotomy were examined histologically. The lacrimal sac had chronic inflammatory changes in 33 of 37 patients with varying degrees of fibrosis in 34 of 37. Focal ulceration of the lacrimal sac(More)
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