scholarly journals A bony defect of the sphenoid air sinus found in male cadaver: a case report

Author(s):  
Asaad A. A. M Al-Shouk

The sphenoid sinus one of the posterior group of sinus, considered one of the most difficult sinuses due to its deep location in the skull. The interest in the understanding of the anatomy of the sphenoid sinus increased markedly during the last decades due to the development of endoscopic transsphenoidal approaches to the intracranial structures. The important anatomical relations of the sphenoid sinus make it one of the difficult and challenging structures for the surgeons. In this case report,we present one of the anatomical variations that was found during cadaveric dissection of the head. In this case we found abnormal bony defect in the lateral wall of the sinus,the defect closed just by the lining mucosa of the sinus and the dura from its intracranial side. A point may be of clinical importance to the related nearby structures.

2012 ◽  
Vol 6 (4) ◽  
pp. 49-52
Author(s):  
N Satyanarayana ◽  
R Guha ◽  
P Sunitha ◽  
GN Reddy ◽  
G Praveen ◽  
...  

Brachial plexus is the plexus of nerves, that supplies the upper limb.Variations in the branches of brachial plexus are common but variations in the roots and trunks are very rare. Here, we report one of the such rare variations in the formations of the lower trunk of the brachial plexus in the right upper limb of a male cadaver. In the present case the lower trunk was formed by the union of ventral rami of C7,C8 and T1 nerve roots. The middle trunk was absent. Upper trunk formation was normal. Journal of College of Medical Sciences-Nepal,2011,Vol-6,No-4, 49-52 DOI: http://dx.doi.org/10.3126/jcmsn.v6i4.6727


2019 ◽  
Vol 36 (01) ◽  
pp. 051-054
Author(s):  
Caroline Dussin ◽  
Lucas Moyses ◽  
Sávio Siqueira

AbstractMany authors have reported and classified several anatomical variations between the musculocutaneous (Mc) and median (Me) nerves, regarding their origin, number, and proximity with the coracobrachialis muscle. There also are, in the scientific community, records classifying the origin of supernumerary heads of the biceps brachii muscle. However, the occurrence of both aforementioned variations in the same arm is very uncommon. During a routine dissection of the right upper limb of a male cadaver, a third head of the biceps brachii was found originating from the fibers of the brachialis muscle, as well as a communicating branch between the Mc and the Me nerves, in the same limb. The objective of the present case report is to describe these multiple variations found, relating them and discussing their relevant clinical implications.


2016 ◽  
Vol 15 (3) ◽  
pp. 259-262
Author(s):  
Satheesha Nayak Badagabettu ◽  
Ashwini Aithal Padur ◽  
Naveen Kumar ◽  
Deepthinath Reghunathan

Abstract Anatomical variations of the celiac trunk and its branches are particularly important from a surgical perspective due to their relationships with surrounding structures. We report here a particularly rare variant involving absence of the celiac trunk in association with trifurcation of the common hepatic artery. These variations were found in an adult male cadaver. We perform a review of the literature and discuss the clinical and embryological significance of these variations. Recognition of celiac trunk and hepatic artery variations is of utmost importance to surgeons and radiologists because multiple variations can lead to undue complications.


Author(s):  
Archana Arora ◽  
Manish Munjal ◽  
Damanpreet Singh

<p class="abstract"><span>The trans-sphenoid access to the pituitary gland is the most common approach for pituitary adenomas. The different routes to the sella ultimately traverse the sphenoid sinus. Therefore the anatomical variations of the sphenoid sinus have major impact on the surgical access. </span>The conchal non-pneumatized sphenoid was always considered to be a contraindication to the trans-sphenoid approach to the sella. The preset study was conducted on a  50 year old male with conchal sella with chief complains of headache and associated loss of vision in left eye is being reported. MRI brain and sella (with contrast) showed evidence of well-defined altered signal intensity in sellar and suprasellar region 12×18×15 mm. DNE showed posterior septectomy defect from previous surgery. Anterior wall of sphenoid was thick and no other landmark was identified. Keeping in midline using the sphenoid rostrum as landmark, drilling was started in 1×0.5 cm area and continued till a depth of around 1 cm till dura was visualized. Intra operative confirmation of the sphenoid and sella was done using C-ARM. It can be utilized to confirm surgical landmarks to access the sella through the sphenoid sinus accurately even in poorly pneumatized sphenoid<span lang="EN-IN">.</span></p>


2015 ◽  
Vol 12 (2) ◽  
Author(s):  
Poonam Singh

<p>During routine human cadaveric dissection for the purpose of teaching learning of medical undergraduates in our department, third head of the biceps brachii muscle was found bilaterally in a 67 years old male cadaver. Bilaterally symmetrical third head was found with fleshy proximal attachment on humerus between the insertion of the coracobrachialis and the upper part of the origin of the brachialis. This supernumerary head was deep to the other two heads of biceps and was inserted into the bicipital aponeurosis. A branch of musculocutaneous nerve could be traced upto the third head. Long and short heads of biceps were of usual anatomy.</p>


2014 ◽  
Vol 03 (01) ◽  
pp. 32-36
Author(s):  
P. Savithri

AbstractBilateral variations in the origin of testicular arteries from renal arteries along with multiple renal arteries were observed in an embalmed middle aged male cadaver during routine dissection for the under graduates. Since the urogenital system has a complicated embryological development, the congenital anomalies and variations in these structures are common. Testicular arterial anatomy is important for testicular and renal surgeries. Anatomical variations of testicular arteries have been reported as 4.7%. Presence of aberrant renal arteries have been seen in 13-16% of cases only. Knowledge of variations in the renal vasculature is of importance not only for the surgeons but also for the radiologist, especially in the interventional and radiological investigations of abdominal region.


Diagnostics ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 970
Author(s):  
Tizita K. Degaga ◽  
Abay M. Zenebe ◽  
Amenu T. Wirtu ◽  
Tequam D. Woldehawariat ◽  
Seife T. Dellie ◽  
...  

Neurosurgeons often neglect the sphenoid sinus due to its deep location and difficulties in accessing during surgical interventions. Disease of the sphenoid sinus is difficult to diagnose since its presenting symptoms are difficult to recognize. Moreover, compared with other paranasal sinuses, the sphenoid sinus is considered the most variable air sinus in terms of its degree of pneumatization, number and position of inter-sinus septa, and its relationship with the surrounding anatomical structures. Anatomical variations of the sphenoid sinus are significant from a neurosurgical point of view. Understanding of these variations and its relationships with surrounding structures such as the internal carotid artery, optic nerve, and pituitary gland are clinically relevant to minimize injuries associated with surgical procedures that involve sphenoid sinus. We implemented principles of imaging using computed tomography to elucidate any anatomical variations of the sphenoid sinus in the Ethiopian population. We conducted a prospective study in 200 patients with ages 18–79, who underwent scans of the sphenoid sinus at the Tikur Anbessa Referral Teaching Hospital in 2017–2018. Our findings revealed an incidence of anatomographical variations in terms of pneumatization that varied between 2–50%. These variants include 2% conchal, 25.5% presellar, 50% sellar, and 22.5% postsellar pneumatization. We also demonstrated anatomographic variants in terms of septation, 77.5% single complete septa, 11.5% single incomplete, 10% double septa, and 1% absence of septa. In summary, the sellar pneumatization was found to be the most clinically relevant anatomographic variant among Ethiopians participating in the study, of which 90% were tomographically single septated. These variants must be taken into consideration during trans-sphenoidal surgery and knowledge of the variations has clinical implication in minimizing injuries during invasive surgical procedures involving the sphenoid sinus.


2020 ◽  
Vol 49 (1) ◽  
pp. 71
Author(s):  
Dimosthenis Chrysikos ◽  
Andreas Athanasopoulos ◽  
Panagiotis Georgakopoulos ◽  
Ioannis Antonopoulos ◽  
Alexandros Samolis ◽  
...  

<p><strong>Objective</strong>. The aim of our paper is to depict an anatomical variation of the brachial plexus, concerning a communicating branch between the median and the musculocutaneous nerve and its clinical significance. Anatomical variations of the brachial plexus and especially those of the musculocutaneous nerve are quite common. Awareness of these variations is of paramount importance in clinical practice, mainly in achieving best results in minimal invasive or surgical procedures.</p><p><strong>Case Report</strong>. After dissection in upper extremities in a 89-year-old male cadaver, a communicating branch between the median and the musculocutaneous nerve was found. This communicating branch was formed before the musculocutaneous nerve perforated the coracobrachialis muscle. It also derived from the level of the ansa medianis and its course was of an approximately 2cm length.</p><p><strong>Conclusion</strong>. The clinical significance of our study is the entrapment of the musculocutaneous nerve that may cause clinical findings similar to those of the carpal tunnel syndrome.</p>


Sign in / Sign up

Export Citation Format

Share Document