1/6. Dacryolith formation around an eyelash retained in the lacrimal sac.A dacryolith was discovered in the lacrimal sac during a dacryocystorhinostomy for chronic dacryocystitis in which there was mucocele formation. Morphological examination confirmed the presence of an eyelash at the centre of the stone and electron microscopy demonstrated the presence of fungi (candida sp.) in a matrix which was of markedly vairable morphology. The mechanism by which a hair enters the punctum and passes along the canaliculus may be attributed to the step-like pattern of ridges on the surface of a hair. The directional nature of these ridges dictates preferential movement towards the root end of the hair and prevents movements in the opposite direction.- - - - - - - - - - ranking = 1keywords = dacryocystitis (Clic here for more details about this article) |
2/6. Expulsion of a lacrimal dacryolith by sneezing: a rare event.PURPOSE: To describe the case of a man presenting with intermittent epiphora of the right eye and a low grade dacryocystitis due to a dacryolith. methods/RESULTS: He was treated conservatively and was offered a dacryocystorhinostomy. A few weeks before surgery, he developed swelling and pain over the right medial canthus followed by violent sneezing with spontaneous extrusion of the dacryolith. DISCUSSION: The authors propose that the dacryolith fragmented spontaneously and once it reached the nasal cavity, was expelled by violent sneezing to the nostril, a mechanism not previously reported. CONCLUSIONS: Reformation of dacryolith is a likely possibility, and recurrence of symptoms in such cases may ultimately require a dacryocystorhinostomy.- - - - - - - - - - ranking = 1keywords = dacryocystitis (Clic here for more details about this article) |
3/6. Dacryoliths in a series of dacryocystorhinostomies: histologic and chemical analysis.PURPOSE: To present the clinical and intraoperative characteristics of dacryolith cases, to present their histologic and chemical analysis, and to relate the findings with the probable causes of their formation in a series of dacryocystorhinostomies performed in northern greece. methods: In a series of 242 dacryocystorhinostomies in patients with chronic dacryocystitis, dacryoliths large enough to perform an accurate chemical analysis and a light histologic examination were found in five cases. The chemical analysis was based on atomic absorption spectrophotometry and atomic emission spectrometry. RESULTS: These five cases concerned relatively young patients who presented symptoms of short duration as compared to the other dacryocystorhinostomy cases. In three of them, irregularities of the lacrimal sac wall were observed. The final postoperative results were satisfactory. The histologic examination revealed acellular amorphous organic material and limited areas with characteristics of calcium salt depositions. The chemical analysis showed mainly organic and minimal inorganic material. CONCLUSIONS: The irregularities of the lacrimal sac wall and the consequent flow disorders within the sac and the histologic and chemical analysis of the dacryoliths provide evidence for etiologic consideration.- - - - - - - - - - ranking = 1keywords = dacryocystitis (Clic here for more details about this article) |
4/6. Spontaneous passage of a dacryolith.A patient had four episodes of recurrent dacryolith over 14 years. Each attack of acutely painful dacryocystitis was terminated by spontaneous passage of the dacryolith. Biochemical and dacryocystographic evidence help to explain the pathogenesis of the condition.- - - - - - - - - - ranking = 1keywords = dacryocystitis (Clic here for more details about this article) |
5/6. Pityrosporum species associated with dacryoliths in obstructive dacryocystitis.Two dacryoliths removed from the obstructed and enlarged lacrimal sac of a 54-year-old woman during dacryocystorhinostomy were found to contain filamentous forms consistent with Pityrosporum orbiculare. To my knowledge, this fungus has not been observed before in a dacryolith or in dacryocystitis.- - - - - - - - - - ranking = 5keywords = dacryocystitis (Clic here for more details about this article) |
6/6. Pityrosporum species associated with dacryoliths: in obstructive dacryocystitis.Two dacryoliths removed from the obstructed and enlarged lacrimal sac of a 54 year-old female patient during dacryocystorhinostomy were found to contain the filamentous forms consistent with Pityrosporum oribulare. It does not seem that this fungus has been observed before in a dacryolith or in dacryocystitis.- - - - - - - - - - ranking = 5keywords = dacryocystitis (Clic here for more details about this article) |