Related Experiment Video
Updated: Jun 24, 2026

Point-of-Care Kidney and Genitourinary Ultrasound in Adults: Image Acquisition
Published on: June 21, 2024
Renal mass in solitary, crossed, ectopic pelvic kidney
Aaron B Grotas1, John L Phillips
1Berger Department of Urology, Beth Israel Medical Center, New York, New York 10003-3313, USA.
Abstract:
A 46-year-old healthy man presented with abdominal pain and a solitary ectopic, crossed pelvic kidney with an enhancing mass, imaged with 3-dimensional computed tomography. He underwent open partial nephrectomy, which revealed Stage T1, grade 2 conventional renal cell carcinoma with negative surgical margins. The incidence of renal cell carcinoma in the computed tomography era in a solitary crossed ectopic kidney is approximately 1 in 22 million.
More Related Videos
Related Concept Videos
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...
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...
Kidney Structure
Kidney Transplant II: Surgical Procedure
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...
Nursing Assessment of the Genitourinary System II: Inspection and Palpation

