CT of the inferomedial orbit and the lacrimal drainage apparatus: normal and pathologic anatomy

Russell, Eric J.; Czervionke, Leo F.; Huckman, Michael S.; Daniels, David L.; McLachlan, Daniel L.

doi:10.2214/ajr.145.6.1147

Cited by 65 publications

(34 citation statements)

References 19 publications

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“…The common canaliculus enters the posterolateral wall of the lacrimal (Fig. 4) [4]. CT may be used in these patients to determine the nature and extent of the abnormality [4].…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Topical contrast-enhanced CT and MR dacryocystography: imaging the lacrimal drainage apparatus of healthy volunteers.

Caldemeyer¹,

Stockberger²,

Broderick³

1998

American Journal of Roentgenology

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OBJECTIVE. The purpose of thisstudywasto evaluate thefeasibilityof administeringtopical contrast material during helical CT dacryocystography and topical saline solution dur ing MR dacryocystography to reveal the lacrimal drainage apparatus. SUBJECTS AND METHODS. Fourteenhealthyvolunteers underwent helicalCTdacryocystography, MR dacryocystography, or both. Eight of the 14 subjects underwent both techniques; three subjects underwent MR dacryocystography, and three subjects underwent CT dacryocystography. Images were evaluated by two radiologists for degree of visualization of componentsof the lacrimal drainageapparatus. Each volunteerwas questionedaboutthe relativediscomfortof contrastmaterialandsalinesolutionadministration.

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“…The common canaliculus enters the posterolateral wall of the lacrimal (Fig. 4) [4]. CT may be used in these patients to determine the nature and extent of the abnormality [4].…”

Section: Discussionmentioning

confidence: 99%

“…4) [4]. CT may be used in these patients to determine the nature and extent of the abnormality [4]. However, con ventional CT cannot provide enough informa tion to diagnose the point of obstruction.…”

Section: Discussionmentioning

confidence: 99%

Topical contrast-enhanced CT and MR dacryocystography: imaging the lacrimal drainage apparatus of healthy volunteers.

Caldemeyer¹,

Stockberger²,

Broderick³

1998

American Journal of Roentgenology

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show abstract

“…CT or MRI scanning are used when traumatic, neoplastic, or mechanical secondary acquired nasolacrimal duct obstruction is suspected [21,24,25]. Combined CT-DCG facilitates visualization of the lacrimal drainage system via three-dimensional reconstruction.…”

Section: Lacrimal Imagingmentioning

confidence: 99%

Acquired Nasolacrimal Duct Obstruction

Mills

Meyer

2006

Otolaryngologic Clinics of North America

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“…The lacrimal sac is a membranous structure discernible within the bony lacrimal fossa, the pronounced depression between the anterior lacrimal crest formed by the frontal process of the maxilla and the posterior lacrimal crest. Homer's muscle, the lacrimal component of the orbicularis oculi muscle, acts as a muscle envelope; the lowest portion of the lacrimal sac is not surrounded by the orbicularis oculi muscle and therefore is potentially weaker at that site, offering less resistance to intraorbital spread of infection [11]. This weaker zone at the inferomedial portion of the sac was the site perforated by the guidewire intraorbitally in the three cases referred to above, leading to incorrect positioning of the stent in the case shown in Fig.…”

Section: Discussionmentioning

confidence: 99%