Absence of Frontal Sinus in Turkish Individuals

Abstract

The frontal sinus has been used for personal identification since the early part of the 20th century as a result of its tremendous interindividual variation. The frontal sinus is present in approximately 90% of adults. However, some populations have a higher proportion of people without a frontal sinus. This study investigated the frequency of the absence of frontal sinuses in Turkish individuals. The present study was performed retrospectively on the CT scans of the paranasal sinuses in the axial and coronal planes from a series of 1200 cases. A bilateral absence and a unilateral absence of sinuses were found in 3.8% and 4.8% of cases, respectively. The clinical significance of the frontal sinuses and their absence are also discussed.

Cone-beam Computed Tomography Analysis of the Frontal Sinus in Forensic Investigation

“…The frontal sinuses are located in the frontal bone, and similarly to the majority of cranial hollow cavities (sphenoidal sinus, frontal sinus, ethmoid cells and maxillary sinus) are pneumatics cavities covered by a mucous membrane with direct or indirect communication with the respiratory system (Quatrehomme et al, 1996;Aydinlioglu et al, 2003;Silva et al).…”

Combined Aplasia of Frontal and Sphenoid Sinuses with Hypoplasia of Ethmoid and Maxillary Sinuses

“…It is the last one to develop among the paranasal sinuses. It has been reported that frontal sinus is absent bilaterally in 3-4 to 10 % of population [1] and the frequency is found to be quite high in Alaskan Eskimos(25 % males, 36 % females) and in Canadian Eskimos(43 % males, 40 % females) [3,4]. In addition to it, the configuration and development of frontal sinus within each population also depends upon the constitutional (age, gender, hormones and craniofacial configuration) and the environmental factors (climatic conditions and local inflammation) [1,5,6].…”

“…It has been reported that frontal sinus is absent bilaterally in 3-4 to 10 % of population [1] and the frequency is found to be quite high in Alaskan Eskimos(25 % males, 36 % females) and in Canadian Eskimos(43 % males, 40 % females) [3,4]. In addition to it, the configuration and development of frontal sinus within each population also depends upon the constitutional (age, gender, hormones and craniofacial configuration) and the environmental factors (climatic conditions and local inflammation) [1,5,6]. As per the literature and previous researchers, it has been reported that the frequency of bilateral frontal sinus aplasia is extremely rare and occurs more in young females as compared to males [1,3,5].…”

“…In addition to it, the configuration and development of frontal sinus within each population also depends upon the constitutional (age, gender, hormones and craniofacial configuration) and the environmental factors (climatic conditions and local inflammation) [1,5,6]. As per the literature and previous researchers, it has been reported that the frequency of bilateral frontal sinus aplasia is extremely rare and occurs more in young females as compared to males [1,3,5]. Spaeth et al [6] noticed that frontal sinus aplasia is found more in young women than men.…”

“…The frontal sinus is absent at birth and develops after the age of 2 years. Frontal sinus is absent bilaterally in 3-4 to 10 % of population [1]. The sphenoid sinus gains its maximum size by late teenage years but shows variation in pneumatization.…”