Three-dimensional Anatomy of the Human Endolymphatic Sac

Dan Bagger-Sjöbäck; Birgitta Jansson; Ulla Friberg; Helge Rask-Andersen

doi:10.1001/archotol.1990.01870030109020

Article

March 1990

Three-dimensional Anatomy of the Human Endolymphatic Sac

Dan Bagger-Sjöbäck, MD, PhD; Birgitta Jansson; Ulla Friberg, MD, PhD; et al Helge Rask-Andersen, MD, PhD

Author Affiliations

From the Department of Otolaryngology, Karolinska Sjukhuset, Stockholm, Sweden (Dr Bagger-Sjöbäck), the Department of Otolaryngology, Akademiska Sjukhuset, Uppsala, Sweden (Ms Jansson and Drs Friberg and Rask-Andersen), and the House Ear Institute, Los Angeles, Calif (Dr Rask-Andersen).

Arch Otolaryngol Head Neck Surg. 1990;116(3):345-349. doi:10.1001/archotol.1990.01870030109020

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Abstract

• Computerized and graphic three-dimensional reconstruction of a human endolymphatic duct and sac (ES) showed the ES to be a fusiform and flattened structure with marked tubularity, especially in the extraosseous region. The specimen was 18.2 mm long. It measured 60 × 200 μm at the isthmus portion of the endolymphatic duct and 200 × 7000 μm at the broadest part of the ES. The volume of the endolymphatic duct was 0.03 mm³ and of the ES, 1.85 mm³. The extraosseous ES volume represented more than two thirds of the total ES volume.

(Arch Otolaryngol Head Neck Surg. 1990;116:345-349)

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Three-dimensional Anatomy of the Human Endolymphatic Sac

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