Related Experiment Video
Updated: Jun 30, 2026

Arthroscopic Excision of Posterior Cruciate Ligament Cysts Using a Double Posteromedial Approach
Published on: October 20, 2023
Cirsoid aneurysm of the synovium of knee: a very rare pathology
1Department of Orthopaedics, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, 110029, India. sameer_naranje@yahoo.co.in
Abstract:
A 10-year-old male presented with pain and restriction of movements of left knee for 6 months. A lesion with hyperintensity on T2 weighted images was demonstrated in the anterior aspect of the left knee. Patient was treated with arthroscopic removal of the lesion which later on proved to be cirsoid aneurysm of the synovium. We could not find any other report of a "cirsoid aneurysm" in the synovium of a joint in the English literature. This case is probably the first report of cirsoid aneurysm in the synovium of a joint.
Related Concept Videos
Knee Joint
A total of seven ligaments support the knee joint. The patellar ligament, which is also attached to the quadriceps femoris group...
Structural Joints: Synovial Joints
Aneurysm I: Introduction
Development of the Limb Synovial Joints
The mesenchymal stem cells differentiate into chondrocytes that form the hyaline cartilage, and later the cartilaginous model of the bone. This model further transforms into a bone. This process is known as endochondral ossification.
During development, the limbs...
Cirrhosis I: Introduction
Ankle Joint