Inguinal canal lipomas are a relatiely common but often under-recognised finding on abdominopelvic CT. They are also referred to as spermatic cord or round ligament lipomas.
They have no communication with the peritoneal fat. They are not considered as true tumours of fat but as extrusions of extraperitoneal fat extending into the inguinal canal.
Lipomas are usually asymptomatic but can sometimes cause pain and discomfort.
Treatment and prognosis
They are a benign entity and no treatment is usually required in incidental asymptomatic cases. Resection can be offerred patients who clinically symptomatic .
On imaging possible differential considerations include
- inguinal fat herniations:
- more complex entities such as: liposarcoma of the spermatic cord
- 1. Fataar S. CT of inguinal canal lipomas and fat-containing inguinal hernias. J Med Imaging Radiat Oncol. 2011;55 (5): 485-92. doi:10.1111/j.1754-9485.2011.02288.x - Pubmed citation
- 2. Bhosale PR, Patnana M, Viswanathan C et-al. The inguinal canal: anatomy and imaging features of common and uncommon masses. Radiographics. 2008;28 (3): 819-35. Radiographics (full text) - doi:10.1148/rg.283075110 - Pubmed citation