National Eclectic Medical Association quarterly . flow of tears, favoring the growth ofmicroorganisms within the tear sac, destruction of its mucosa, necrosis ofits osseous walls and the surrounding tissues. Fractures of the walls ofthe duct, neoplasms, and in fact obstructions of any description, mechanicalor pathological, play an important part in the various forms of dacryocystitis. Hypertrophic rhinitis may cause inflammation of the lachrymal sac,acting primarily as an obstructive predisposing, and perhaps later as anexciting, cause. Atrophic rhinitis, particularly where atrophy is associa
National Eclectic Medical Association quarterly . flow of tears, favoring the growth ofmicroorganisms within the tear sac, destruction of its mucosa, necrosis ofits osseous walls and the surrounding tissues. Fractures of the walls ofthe duct, neoplasms, and in fact obstructions of any description, mechanicalor pathological, play an important part in the various forms of dacryocystitis. Hypertrophic rhinitis may cause inflammation of the lachrymal sac,acting primarily as an obstructive predisposing, and perhaps later as anexciting, cause. Atrophic rhinitis, particularly where atrophy is associatedwith ozena, is a prolific causative factor in the production of disease of thesac. Especially is this the case where the formation of crusts takes place,either about the ostium lachrymale or away from it. In this instance thereis a direct upward migration of the infectious microorganisms into theduct and sac with greater freedom and in larger amounts than in the simplehypertrophic form of rhinitis. Frequently, in cases of dacryocystitis, one. Plate I.—Frontal bone, with entire anterior wall removed. Thinorbital roof and walls. 1—Diverticula; 2—Beginning of nasofrontalcanal.
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