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Sinus septi nasi: Anatomical study.

Ranko Mladina1, Romano Antunović2, Cemal Cingi3

  • 1Department of ENT Head and Neck Surgery, Clinical Hospital Center Zagreb, Kišpatićeva 12, Zagreb, 10000, Croatia.

Clinical Anatomy (New York, N.Y.)
|February 14, 2017
PubMed
Summary
This summary is machine-generated.

Pneumatization of the human nasal septum occurs in 34.4% of individuals as sinus septi nasi (SSN). An additional 65.59% exhibit spongy bone formations in this region, impacting ethmoidal bone structure.

Keywords:
bonedimensionethmoidnasal septumperpendicular plateskullspongyvomeronasal organ

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Area of Science:

  • Anatomy
  • Anthropology
  • Radiology

Background:

  • The ethmoidal bone's perpendicular plate is typically considered compact bone.
  • Pneumatization, or air-filled spaces, in cranial structures is a known phenomenon.
  • The nasal septum region's detailed anatomy regarding pneumatization is under-investigated.

Purpose of the Study:

  • To investigate the incidence and characteristics of pneumatization in the human nasal septum.
  • To identify and quantify specific pneumatized spaces within the nasal septum.
  • To explore potential origins of nasal septum pneumatization.

Main Methods:

  • Cone beam computed tomography (CBCT) scans of 93 adult human skulls were analyzed.
  • Measurements of width, length, and height were taken for identified pneumatized spaces.
  • Two distinct findings were categorized: sinus septi nasi (SSN) and spongy bone (SB) formations.

Main Results:

  • Sinus septi nasi (SSN) was identified in 32 out of 93 skulls (34.4%).
  • SSN formations ranged from 0.5-4.2 mm in width, 3.5-18.8 mm in length, and 3.8-17.7 mm in height.
  • Spongy bone (SB) formations were observed in 61 out of 93 skulls (65.59%), with less defined borders.

Conclusions:

  • The perpendicular plate of the ethmoidal bone exhibits pneumatization in 34.4% of cases.
  • Enlarged spongy bone formations are present in 65.59% of cases, suggesting variations in bone density.
  • Potential sources for this pneumatization include the sphenoid sinus, frontal sinus, and vomeronasal organ.