An additional challenge for head and neck radiologists: anatomic variants posing a surgical risk – a pictorial review

Farina, Davide; Lombardi, Davide; Bertuletti, Martina; Palumbo, Giovanni; Zorza, Ivan; Ravanelli, Marco

doi:10.1186/s13244-019-0794-7

Cited by 8 publications

(4 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These variations pose significant challenges to surgeons and, if not correctly recognized and managed, can lead to technical errors with unwanted iatrogenic consequences [ 30 ]. Even experienced surgeons may encounter difficulties when confronted with unexpected anatomical configurations during surgery, highlighting the importance of comprehensive and in-depth anatomical knowledge.…”

Section: Discussionmentioning

confidence: 99%

Sciatic Nerve and Its Anatomical Variations: In-Depth Understanding Acquired During Dissection Classes

Branca,

Guarnieri,

Morelli

et al. 2024

Cureus

View full text Add to dashboard Cite

Knowledge of anatomical variability is extremely important in order to better understand the etiology of pain, if present, or to avoid iatrogenic consequences. Sometimes the anatomical "anomalies" have the same anamnesis but different causes. For example, sciatic neuralgia may be caused by a herniated disc or it may have a different origin. The sciatic nerve (SN), also known as the ischial nerve, is the widest in the human body. This huge peripheral nerve originates from the roots of the lumbosacral plexus (L4-S3) and passes through the great sciatic foramen, under the piriformis muscle (PM). However, there is much variability in the pattern of SNs about the muscle, which has been known since the first half of the 20th century. In the present study, we describe six different case reports of anatomical variations of the SN and its interplay with the PM. The observations were made during dissection classes at the ICLO Teaching and Research Centre (Verona, Italy), on both male and female cadavers aged between 58 and 84 years. The SN was reported as a single and divided nerve into the tibial nerve (TN) and the common peroneal nerve (CPN), passing alone above, below, or between the PM. However, the two parts of the SN may also interact with the PM in different ways, adding to the anatomical variability. A thorough knowledge of the anatomical variations in any part of the human body is extremely important. The various techniques used, from imaging to autopsy or surgery, are also useful in the SN pathway. Thus, the anatomical features and the understanding of each variation are useful for a correct approach that can lead to an effective and correct treatment with a favorable outcome.

show abstract

Section: Discussionmentioning

confidence: 99%

Sciatic Nerve and Its Anatomical Variations: In-Depth Understanding Acquired During Dissection Classes

Branca,

Guarnieri,

Morelli

et al. 2024

Cureus

View full text Add to dashboard Cite

show abstract

“…The BCT divides into the RCCA and the RSA. [3,4] However, it has been reported in the literature that cervical vascular variations and distortions are more common on the left side, with abnormalities on the right side of the neck accounting for less than 1% of the total. [5] In addition, a study of 556 patients with thoracic aortic disease showed that 33.5% (186 patients) demonstrated anomalies of the aortic arch, 6.3% (35 patients) had an isolated left vertebral artery, and 1.8% (10 patients) had an aberrant RSA.…”

Section: Discussionmentioning

confidence: 99%

Common carotid artery distortion before percutaneous dilatational tracheostomy

Du¹

2022

World Journal of Emergency Medicine

View full text Add to dashboard Cite

“…This phenomenon is usually associated with air cavity pneumatization or dehiscence of bony canal walls. 1 …”

Section: Introductionmentioning

confidence: 99%

“… 2 Likewise, infraorbital nerve protrusion into the maxillary sinus has been documented. 1 3 The latter variant has recently become a topic of interest to ear, nose, and throat specialists and maxillofacial surgeons. This is due to the importance of a patent maxillary sinus in advanced sinonasal procedures such as Caldwell-Luc surgery, rhinoplasty, endoscopic sinus surgery, maxillary resection, and tumor removal from the maxilla and the maxillary sinus.…”

Section: Introductionmentioning

confidence: 99%

Protrusion of the infraorbital canal into the maxillary sinus: A cross-sectional study in Cairo, Egypt

Eiid

Mohamed

2022

Imaging Sci Dent

View full text Add to dashboard Cite

Purpose The aim of this study was to investigate the prevalence of infraorbital canal protrusion in an Egyptian subpopulation using cone-beam computed tomography and to describe its radiographic representation. Materials and Methods This retrospective cross-sectional study was conducted using the records of 77 patients and 123 maxillary sinuses. The full lengths of the sinuses were visible for the detection of infraorbital canal protrusion. The infraorbital canals were classified into 3 types based on their relation to the sinus. If the septum was present, its length and its distance from the sinus floor were measured. Qualitative and quantitative variables were described as percentages and means with standard deviations, respectively. Results The infraorbital canal most commonly presented as the normal confined type (detected in 78.1% of sinuses), whereas the suspended (or protruded) variant was found in 14.6% of the examined sinuses. The septal length ranged from 0.9 to 5.1 mm, with a mean of 2.8±1.1 mm. The distance to the sinus floor ranged from 5.2 to 29.6 mm depending on the sinus shape and size. Conclusion The present study indicates that protrusion of the infraorbital canal is not rare, and surgeons that use the maxillary sinuses as corridors for their procedures must be more cautious, especially in the upper lateral confines of the sinus.

show abstract

An additional challenge for head and neck radiologists: anatomic variants posing a surgical risk – a pictorial review

Cited by 8 publications

References 23 publications

Sciatic Nerve and Its Anatomical Variations: In-Depth Understanding Acquired During Dissection Classes

Sciatic Nerve and Its Anatomical Variations: In-Depth Understanding Acquired During Dissection Classes

Common carotid artery distortion before percutaneous dilatational tracheostomy

Protrusion of the infraorbital canal into the maxillary sinus: A cross-sectional study in Cairo, Egypt

Contact Info

Product

Resources

About