Morphometric Study of Pterion and its Clinical Significance: An Approach towards Anatomical Variations

Author(s):  
Gyanaranjan Nayak ◽  
Biswa Bhusan Mohanty ◽  
Saurjya Ranjan Das
Author(s):  
Gyanaranjan Nayak ◽  
Biswa Bhusan Mohanty ◽  
Saurjya Ranjan Das

  Objective: Pterion is an area formed by the union of frontal, parietal, temporal, and sphenoid bones. It exhibits variations in the sutural pattern of fusion of constituent bones. Basing on this, the pterion can be classified into four varieties. According to Murphy, these are sphenoparietal, frontotemporal, stellate, and epipteric. The anatomical location of the pterion is necessary for the surgical management of extradural hemorrhage, aneurysm, and brain tumors located in the anterior and middle cranial fossae.The purpose of this study is to find out the prevalence of different varieties of pterion and determine the position of pterion using anatomical landmarks.Methods: The present study included fifty skulls of unknown age and sex. The skulls were studied macroscopically for the anatomical variations of pterion. The distance between the center of the pterion to the midpoint of zygomatic arch and pterion to the frontozygomatic suture was measured using Vernier calipers.Results: The sphenoparietal variety was the most common variety of pterion found in the study followed by the epipteric variety and the stellate variety, respectively. The distance between pterion and back of the frontozygomatic suture was found to be 3.48 ± 0.21 cm on the right side and 3.41 ± 0.16 cm on the left side. The distance between pterion and the midpoint of upper border of the zygomatic arch was found to be 4.01 ± 0.19 cm on the right side and 3.94 ± 0.2 cm on the left side.Conclusion: The findings will be helpful for radiologists and neurosurgeons.


2018 ◽  
Vol 67 ◽  
pp. S68-S69
Author(s):  
R. Gurudiwan ◽  
C. Mohapatra ◽  
C. Sarangi ◽  
R. Biswal ◽  
M. Panda

2016 ◽  
Vol 9 (2) ◽  
pp. 59-61
Author(s):  
Shrinath D Kamath Patla ◽  
Pretty Rathnakar ◽  
Vadisha S Bhat ◽  
Jayaramesh LNU

ABSTRACT Aim (a) To study the variations in the superior attachment of uncinate process. (b) Incidence of pneumatization of uncinate process was also studied. Materials and methods A total 200 sides of 100 CT scans of paranasal sinuses coronal section were studied for variations in the superior insertion of uncinate process using Landsberg and Friedman classification. Incidence of pneumatization of uncinate process was also studied. Results In our study out of 200 sides, type 6 attachment was commonest (41%) followed by types 1 and 2. Pneumatization of the uncinate was seen in very small percentage of cases. Conclusion Lateral insertion of uncinate (lamina papyracea + aggar nassi) is the commonest variant followed by the insertion into the skulbase. Pneumatization of uncinate is rare. Clinical significance Though the inferior attachment of the uncinate is almost constant the superior attachment has several variations, the knowledge of which is very important for the endoscopic surgeon to avoid intraoperative complications. How to cite this article Patla SDK, Rathnakar P, Bhat VS, Jayaramesh. A Radiological Study of Anatomical Variations of Uncinate Process. Clin Rhinol An Int J 2016;9(2):59-61.


2021 ◽  
Vol 35 (S1) ◽  
Author(s):  
Kishore Sesham ◽  
Rajesh Kumar ◽  
Jayashree Raja ◽  
Rima Dada

2020 ◽  
Vol 11 (3) ◽  
pp. 4902-4907
Author(s):  
Manoj P Ambali ◽  
Surekha D Jadhav

Cervical vertebrae have a cardinal part that is a closeness of and through it passes the vertebral course, vertebral vein and sharp plexus of nerves. The vertebral course enters the of C6 and this way, the FT of C7, which transmits just the vein and nerve, might be near nothing or even occasionally absent. A vertebral channel may enter through C7 in 2% cases as necessities be combinations of this may affect the anatomical course of vascular and neural structures, and this way may cause over the top conditions. The explanation behind the investigation was to watch the anatomical mixes in the of seventh cervical vertebrae. Present work was carried on 156 dry seventh cervical vertebrae of cloud sex and age. We observed each for shape, symmetry, number or accessory and spicules. We observed nine different types of shape of . Round shapes of were present in 28.75 %, accessory in 28.84% and spicules in 12.17 % of vertebrae also noted incomplete FT in 5 vertebrae. Disclosures of present evaluation may be helpful for a radiologist in the comprehension of X-segments, dealt with and scans for spine specialists in preoperative arranging and for blocking injury of a vertebral vessel near to sharp nerves during the careful cervical approach.


2018 ◽  
Vol 08 (04) ◽  
pp. 270-273
Author(s):  
Aisha Hassan Brohi ◽  
Kevin Joseph Jerome Borges ◽  
Gulraiz Hikmat Yar ◽  
Syed Nudrat Nawaid Shah ◽  
Nuzhat Hassan

In occlusive vascular brain diseases, the structure of the circle of Willis is of immense importance. A high percentage of variations have been reported in the arteries forming circle of Willis. These have profound clinical implications. With advances in interventional radiological procedures, the interventional radiologists and neurosurgeons need to have thorough knowledge of these variations. This article will help readers understand the significance of anatomical variations and their clinical effects.


2016 ◽  
Vol 05 (01) ◽  
pp. 036-038
Author(s):  
E Anitha ◽  
K Maheswari

AbstractMandibular nerve is a branch of Trigeminal nerve which gives off Lingual, Inferior alveolar, Auriculotemporal, Buccal branch and motor branches to muscles of mastication. Anatomical variations related to mandibular nerve and its branches are of great importance to Oral maxillofacial surgeons and Dentists. During routine cadaveric dissection of infratemporal fossa of an adult male in the Institute of Anatomy, Madurai Medical College, variations in the branching pattern of mandibular nerve and an unusual course of lingual nerve were found on the left side. Such anatomical variations of mandibular nerve and its branches are of clinical significance during dental procedures and maxillofacial surgeries.


2016 ◽  
Vol 22 (2) ◽  
pp. 44
Author(s):  
B. Capurro ◽  
A. Munjin ◽  
T. Prado Ceroni ◽  
A. Telias ◽  
R. Sepúlveda Palamara ◽  
...  

2016 ◽  
Vol 4 (1) ◽  
pp. 1859-1863 ◽  
Author(s):  
A.K.Manicka Vasuki ◽  
◽  
K.Kalyana Sundaram ◽  
M.Nirmaladevi ◽  
M.Jamuna ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document