Related Experiment Video
Updated: Aug 6, 2025

Human Vastus Lateralis Skeletal Muscle Biopsy Using the Weil-Blakesley Conchotome
Published on: March 4, 2016
[A boy with a painful lump in the right inguinal region]
Marthe C M Peeters1,2, Herman M Schuttevaer1, H J R Eric van der Horst1
1Amsterdam UMC, afd. Urologie, Amsterdam.
Abstract:
A 6-year-old male, with no history of importance, was seen in the Emergency Department, presenting with a painful lump in the right inguinal region since four days. An ultrasound revealed a torsion of an ectopical testis. Surgery showed a necrotic right testicle and a right orchiectomy was performed.
Related Concept Videos
Abdominal Regions and Quadrants
The simpler quadrants approach, which is more commonly used in medicine, subdivides the cavity with one horizontal and one vertical line that intersects at the patient's umbilicus (navel). The four...
Appendicitis-I: Introduction
Etiology: Appendicitis can arise from various causes, primarily rooted in the obstruction of the appendix lumen. Factors contributing to this obstruction include fecal accumulation, lymphoid hyperplasia and, in...
Assessment of the Rectum and Anus
Rectal Inspection
Begin by inspecting the perianal and anal areas for color, texture, rashes,...
Assessment of the Abdomen III: Palpation
Nursing Assessment of the Genitourinary System II: Inspection and Palpation
Testes: Gross Anatomy
Each testis is surrounded by the tunica albuginea, a dense connective tissue layer that provides structural support and protection. This layer is covered by an outer serous membrane called the tunica vaginalis, which helps reduce friction...

