Related Experiment Video
Updated: Jun 18, 2026

Unilateral Ureteral Obstruction Model for Investigating Kidney Interstitial Fibrosis
Published on: April 25, 2025
[Fibromyxoid sarcoma of kidney]
Noelia del Valle González1, Jaime Santos Largo, José Martínez-Sagarra Oceja
1Servicio de Urología, Hospital Universitario Río Hortega, Valladolid, España. ndelvallegon@yahoo.es
Objective:
To report a case of fibromyxoid sarcoma of the kidney.
Clinic Report:
A 28-year-old male patient attended the urological outpatient clinic for left varicocele associated with abdominal pain, fatigue, and weight loss.
Conclusions:
Low-grade fibromyxoid sarcoma of the kidney is an uncommon tumor. Surgery is the treatment of choice for this condition. Pathological analysis provides the final diagnosis.
Related Concept Videos
Nephrotic Syndrome I : Introduction
External Anatomy of the Kidney
The kidneys are located in the retroperitoneal space on either side of the vertebral column, protected posteriorly by the 11th and 12th ribs. The right kidney sits slightly lower than the left owing to the presence of the liver...
Nephrons
Renal Corpuscle
Glomerulus: Structure and Function
The glomerulus is a tiny, intricate network of capillaries located at the beginning of the nephron. It's enveloped by the Bowman's capsule and receives its blood supply from an afferent arteriole, which divides into numerous capillaries...
Kidney Structure
Internal Anatomy of the Kidney
Anatomical Position and Dimensions
The kidneys are retroperitoneal organs positioned against the posterior abdominal wall on either side of the spine, roughly between the twelfth thoracic and third lumbar vertebrae. Each kidney is typically 10-12 cm long, 5-6 cm wide, and 3-4 cm thick, weighing about 150 grams.
Renal Cortex
The outermost region of the kidney is the...

