Lacrimal Sac, Classified within the Orbital Tissue

ABSTRACT

Purpose

To disclose that the lacrimal sac is classified within the orbital tissue.

Materials and Methods

Ten orbits of 9 Japanese cadavers aged 64 to 85 years at death were included. The attachment site of the orbital septum in the medial canthal area was grossly dissected. The relationship between the orbital septum attachment site and the location of the lacrimal sac was examined.

Results

In the upper region, the orbital septum was attached to the most superior area of the lacrimal fossa and the medial canthal tendon. In the lower region, the septum was attached to the anterior lacrimal crest and the medial canthal tendon. In both the upper and lower regions, none of the septa attached to the posterior lacrimal crest. The lacrimal sac was situated behind the orbital septum.

Conclusion

The lacrimal sac, which is situated behind the orbital septum, is classified within the orbital tissue.

PRÉCIS

The lacrimal sac, which is situated behind the orbital septum attaching to the anterior lacrimal crest and the medial canthal tendon, is classified within the orbital tissue.

KEYWORDS:

• Anterior lacrimal crest
• lacrimal sac
• medial canthus
• orbital septum
• orbital tissue

ACKNOWLEDGMENTS

The authors wish to express their gratitude to all those who donated their bodies to medical science.

DISCLOSURE STATEMENT

No potential conflict of interest was reported by the author(s).

Additional information

Funding

The authors declare that no funds, grants, or other support were received during the preparation of this manuscript.