International Journal of Cadaveric Studies and Anatomical Variations

A Case Series Cadaveric Study on Acquired and Congenital Azygos Venous System Variations

2024-04-30T16:50:28-05:00

The azygos venous system holds essential clinical relevance as it can provide collateral circulation in cases where the superior and inferior vena cava become obstructed. Additionally, it is important in imaging and mediastinal procedures because variations in this system may be confused with pathology. In this study, the azygos system of 31 embalmed anatomy donors was dissected, analyzed, and classified according to the Anson McVay system and Dahran and Saomes subclassification. Out of 31 donors, one (3.22%) donor was classified as Type I, 27 (87.09%) were Type II, two (6.45%) were Type III, and one (3.22%) was unobservable. These values closely replicated values previously reported in literature; however, four subjects exhibited variations that are rare or not previously reported in literature. In this paper, we describe those rare cases and consider their development and clinical relevance.

Potential Rheumatological Heart Disease Causing Triple Valve Replacement: A Case Report

2024-04-30T16:50:20-05:00

INTRODUCTION: Mechanical valves were identified in the aortic, mitral, and tricuspid valves of an 88-year-old donor. The presence of these valves along with the donor's past medical history and body habitus indicate a triple valve replacement surgery was performed.

CASE PRESENTATION: Here we describe our 88-year-old donor’s body habitus during routine anatomical dissection.

DISCUSSION: Evidence of a rare triple valve surgery is discussed along with how this type of case report acts as a useful exercise contributing towards medical student education.

CONCLUSION: A rare triple valve replacement appears to have been performed on our donor.

Overall Prevalence and Clinical Significance of a Retroesophageal Right Subclavian with a Non-Recurrent Right Laryngeal Nerve in an 83-year-old and a 93-year-old White Male Donor

2024-04-30T16:50:12-05:00

Head and neck anatomic variations are common and generally go undetected, but may be clinically significant or have important surgical consequences. Knowledge of various abnormalities is important for clinical decision making and the avoidance of iatrogenic complications. Anomalies of the aortic arch and its various branches are relatively common. However, rare variations with profound clinical sequelae can occur. During recent cadaveric dissection, we identified an 83-year-old and a 93-year-old White male donor who both had a right retroesophageal subclavian artery with an associated non-recurrent right laryngeal nerve. Lack of knowledge of this anatomic variation can directly result in severe consequences for patients and lead to major morbidity. Understanding this variation and recognizing it will be important for anatomists, radiologists and surgeons.

Additional Tendon Slip of the Extensor Carpi Radialis Longus: A Case Report with Clinical Application

2024-04-30T16:50:04-05:00

Additional tendon slips of the extensor carpi radialis longus are rare anatomical variants, with incidence ranging from 12-35%. While this anatomical variant is typically benign, it is clinically important as it can contribute to neuromusculoskeletal dysfunction. Medical providers should be aware of variations of the wrist extensors during surgeries involving the forearm and wrist. The presence of additional tendons may cause confusion when interpreting imaging findings. This case report details findings of an additional wrist extensor tendon identified during a cadaveric dissection lab in a physical therapist education program.

Congenital Vertical Talus

2024-04-30T16:49:57-05:00

The talus is a very important bone in the foot skeleton. It represents the connection between the leg bones and the other bones of the foot. Its normal anatomy is correlated to its good function. The bone may be exposed to congenital anatomical variations and deformities, including congenital vertical talus (CVT), which affect the shape and movements of the foot. Although CVT is rare, it is important to keep in mind the possibility of CVT when examining a foot defect in newborns to avoid neglecting its treatment and subsequent complications and to avoid extensive surgical intervention.