Cirsoid aneurysm of the synovium of knee: a very rare pathology

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.

Idiopathic renal arteriovenous fistula, a rare cause of severe hematuria: Case report

“… 1 Different studies support that tobacco causes especially abdominal aneurysms and smaller amounts in other parts of the body. 1 , 3 …”

“… 1 , 2 Renal arteriovenous fistulas can be of congenital origin (22–25%), idiopathic (3–5%) or acquired (70–75%). 2 , 3 High-flow vascular malformations (congenital) are called cirsoid aneurysms when they acquire a nest disposition. 2 Acquired aneurysms are more frequent and may be secondary to renal traumas, tumors or iatrogenic causes such as: renal biopsy, percutaneous renal surgery, percutaneous nephrostomy, open surgery and extracorporeal shock wave lithotripsy.…”