Characteristics Of Septum Research Articles

Prevalence and Features of Maxillary Sinus Septa in Patients with Cleft Lip and Palate: Cone Beam Computed Tomography Imaging Technique.

The development of the maxillary sinus is different in patients with cleft lip and palate (CLP) compared to non-CLP individuals. To investigate the prevalence and features of maxillary sinus septa (MSS) in patients with CLP in comparison with the non-CLP population. Retrospective study. Cone beam computed tomography (CBCT) evaluation. CLP center in Shiraz faculty of dentistry, Iran. A total 306 sinuses (88 cleft and 218 noncleft) on 153 images (CLP group: n = 66; control group: n = 87) were examined to determine the prevalence of septa and characterize them. Sinus septa were characterized according to height, orientation, angle, origin, and location. The chi-square test, Mann-Whitney U test, and Fisher's exact test were used for statistical analysis. The prevalence of septa was 28.9% and 32.1% in the CLP and control groups, respectively. No significant difference was found between the study groups in terms of prevalence, location, and orientation of MSS. The average height and angle of septa were significantly higher in the control group compared to the CLP group. Inferior origin was significantly more prevalent in the control group than in the CLP group (P = .004). There was no difference in the prevalence of MSS between patients with CLP and non-CLP individuals. However, certain features of the septa were different in patients with CLP.

Evaluation of maxillary sinus septa: a retrospective clinical study with cone beam computerized tomography (CBCT).

To determine the prevalence, height, location, orientation, and type of maxillary sinus septa in atrophic, non-atrophic, and partially atrophic maxillary segments using cone beam computerized tomography (CBCT). This cross-sectional study was conducted on a retrospective evaluation of CBCT images of 1000 maxillary sinus with 500 subjects from December 2009 to December 2012. The differences among gender, left and right side of maxillary sinus, type of crest and feature of septa were statistically analyzed. A total of 297 septa was recorded in 1000 maxillary sinuses (29.7%) with a mean height was 4.62±2.50 mm. Forty-four (8.7%) septa were located in the anterior area, 123 (24.5%) in the middle area, and 131 (26.4%) in the posterior area. Seventy maxillary sinus septa (26.1%) were observed with a mediolateral type orientation. There were no significant differences between all features of maxillary sinus septa and gender or type of crest. The only significant association identified was between type of crest and type of septa. The maxillary sinus septa exhibited variable characteristics according to orientation and type of crest. CBCT analysis is very important and should be performed before maxillary sinus surgery to prevent possible complications.

Septa of Bertin: a sonographic pseudotumor.

The sonographic features of six renal "pseudotumors" representing septa of Bertin are described. Septa of Bertin are isoechoic with renal parenchyma and demonstrate a characteristic splaying of the central sinus echoes. CT performed in all six cases revealed the "mass" to be normally enhancing renal cortex. The characteristic radiographic features of septa of Bertin are reviewed and the split sinus sign is discussed.