Computed tomographic dacryocystography using topical contrast media for lacrimal system visualization: Preliminary investigations

Zinreich, S. James; Miller, Neil R.; Freeman, L. Neal; Glorioso, Lawrence W.; Rosenbaum, Arthur E.

doi:10.3109/01676839009012351

Cited by 36 publications

(17 citation statements)

References 5 publications

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“…CT is an excellent imaging technique for the study of masses and bony alterations in the lacrimal pathways, espe cially when combined with dacryocystography [8][9][10][11], Un fortunately, tumors and mucous cysts have a similar paren chymal density on CT, and the demonstration of a cystic space requires a thick wall, as in chronic dacryocystitis. On the contrary, lacrimal sac diverticula are surrounded by an extremely thin fibrous (or epithelial-fibrous) layer, which is not apparent in CT.…”

Section: Discussionmentioning

confidence: 99%

Imaging Techniques in the Diagnosis of Lacrimal Sac Diverticulum

Polito

Leccisotti²,

Menicacci³

et al. 1995

Ophthalmologica

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Lacrimal sac diverticulum is a rare condition characterized by a cystic structure communicating with the sac. This abnormality may be directly demonstrated by dacryocystography only in a few cases; in the remaining cases, preoperative diagnosis may be arduous. We report 3 cases of lacrimal sac diverticulum. In all patients, symptoms were represented by a palpable mass in the lacrimal sac region, associated with permanent (case 1) or episodic (cases 2 and 3) epiphora. In the first case, CT-dacryocystography revealed an apparently solid mass causing inferior lacrimal obstruction, and ultrasonography disclosed a cystic space, not communicating with the sac. At surgery, a sac diverticulum was identified and excised. In the second patient, CT showed a homogeneous rounded mass, whereas a cystic character was revealed by T₁-weighted MRI. Dacryocystography showed a lateral impression on the lateral wall of the sac. Ultrasonography revealed a cystic space communicating with the lacrimal sac. In the third case, ultrasonography demonstrated a diverticulum. CT is often unable to discriminate tumors from lacrimal cysts, both showing a parenchymal density. MRI can differentiate lacrimal cystic spaces from solid tumors by T₁ intensity and by demonstration of their walls, but it is nonspecific for diverticula. Only dacryocystography and B-scan ultrasonography can reveal the narrow communication between the sac and the diverticulum. Observation is the recommended management for asymptomatic cases.

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Section: Discussionmentioning

confidence: 99%

Imaging Techniques in the Diagnosis of Lacrimal Sac Diverticulum

Polito

Leccisotti²,

Menicacci³

et al. 1995

Ophthalmologica

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“…With the advance of technical progress, more possibilities have become available for the diagnostic imaging of lacrimal drainage system diseases [1,2,9,13,14]. Ultrasound diagnostics can also be used [3,5,7,8,10].…”

Section: Introductionmentioning

confidence: 99%

Use of ultrasound diagnostics in lacrimal sac diseases

Végh

Németh

1991

Int Ophthalmol

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Ultrasonographic examinations of the lacrimal drainage system demonstrated that the Ultrascan System IV apparatus used was not able to represent the normal-size lacrimal canaliculi, the common canaliculus, the lower part of the nasolacrimal duct and the lacrimal ostium. It can be used routinely, however, in the diagnostics of diseases of the lacrimal sac and its surrounding tissue, for surgical indication and in order to examine the postoperative condition, in most cases without other expensive diagnostic methods. The advantages over dacryocystography are that it is simple, quick, and inexpensive, it can be used post-operatively immediately, the patient is not exposed to radiation, it can be used without any contrast medium, and it is useful when the common canaliculus is occluded.

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“…ZINREICH et al (1990) were the first to combine CT and dacryocystography by performing a CT examination of the lacrimal drainage system after applying contrast medium to the lacrimal drainage system. They did so by inserting some drops of water-soluble contrast medium into the conjunctival sac.…”

Section: Ct Dacryocystographymentioning

confidence: 99%

Imaging and Interventional Procedures for the Lacrimal Duct System

Janssen

1999

Medical Radiology

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Computed tomographic dacryocystography using topical contrast media for lacrimal system visualization: Preliminary investigations

Cited by 36 publications

References 5 publications

Imaging Techniques in the Diagnosis of Lacrimal Sac Diverticulum

Imaging Techniques in the Diagnosis of Lacrimal Sac Diverticulum

Use of ultrasound diagnostics in lacrimal sac diseases

Imaging and Interventional Procedures for the Lacrimal Duct System

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