Radiological study of the intumescentia septi nasi anterior

Abstract

Intumescentia septi nasi anterior (ISNA) is a common anatomical variation that is not routinely noticed by surgeons or radiologists. ISNA is a mucosal bulging located on each side of the anterior part of the septum. The aim of this study was to investigate the prevalence of ISNA in different ages and sexes. In this study, computerized tomography (CT) scans of the paranasal sinus were obtained from 595 patients who had symptoms of chronic sinusitis. Among 595 subjects, ISNA was found in 332 (55.79 per cent) of subjects. It was found more frequently in males than females in every age group. Although ISNA is a common anatomical variation, it is generally overlooked. This is the first report on ISNA in different age groups and sexes.

Relationship Between Septal Body Size and Septal Deviation

“…5 This study demonstrates a strong relationship between septal deviation and contralateral septal body hypertrophy.…”

Correlation Between the Septal Body and the Nasal Turbinates in Patients With Deviated Nasal Septum

“…On the same slice, the degree and side of the septum deviation and the width of the inferior turbinate 1 were assessed (Figs. [2][3]. The degree of the septal deviation was measured using the method described in the literature 11 and was graded as mild ( 88), moderate (98-158), or severe (!168).…”

“…1 Structural and anatomic differences between the SB and the rest of the septum have been shown on radiologic images. 3 The histologic characteristics of the SB mucosa have been found to be thicker, with more glandular acini and blood sinusoids than are found in the rest of the septal mucosa. 4 In a cadaver study, the SB was described as fusiform shaped and had a mean width of 12.4 (1.9) mm, mean height of 19.6 (3.2), and mean length of 28.4 (3.5) mm 2 .…”

The effect of allergic rhinitis on nasal septal body size

“…The nasal septal body has been described in the literature using numerous terms including nasal septal swell body, intumescentia nasi anterior, septal turbinate, septal cavernous body, Kiesselbach's body, septal erectile tissue and anterior septal tubercle. [5,7] In this study, we preferred to use the term nasal septal swell body due to its structural view on coronal plane paranasal sinus CT. Despite its many names, its exact role in nasal airway physiology has not been clearly defined so far.…”