Ophthalmologica

Case Report

Imaging Techniques in the Diagnosis of Lacrimal Sac Diverticulum

Polito E.a · Leccisotti A.a · Menicacci F.a · Motolese E.b · Addabbo G.b · Paterra N.b

Author affiliations

aOrbital and Adnexal Service and bUltrasonography Service, Department of Ophthalmology and Neurosurgery, University of Siena, Siena, Italy

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Ophthalmologica 1995;209:228–232

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Article / Publication Details

First-Page Preview
Abstract of Case Report

Received: March 23, 1994
Accepted: February 14, 1995
Published online: April 01, 2010
Issue release date: 1995

Number of Print Pages: 5
Number of Figures: 0
Number of Tables: 0

ISSN: 0030-3755 (Print)
eISSN: 1423-0267 (Online)

For additional information: https://www.karger.com/OPH

Abstract

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.

© 1995 S. Karger AG, Basel




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Article / Publication Details

First-Page Preview
Abstract of Case Report

Received: March 23, 1994
Accepted: February 14, 1995
Published online: April 01, 2010
Issue release date: 1995

Number of Print Pages: 5
Number of Figures: 0
Number of Tables: 0

ISSN: 0030-3755 (Print)
eISSN: 1423-0267 (Online)

For additional information: https://www.karger.com/OPH


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