A fibroma is a benign growth composed of fibrous connective tissue. In sonography, fibromas can be encountered in several locations, including the ovary, where an ovarian fibroma appears as a solid, hypoechoic mass that may be associated with ascites in Meigs syndrome. Fibromas can also occur in soft tissues throughout the body, where they appear as well-defined, solid masses with variable echogenicity depending on their density and composition. While fibromas are benign, they can sometimes be difficult to distinguish from malignant tumors on imaging alone, and biopsy or surgical removal may be needed for definitive diagnosis when the imaging appearance is atypical.
Sonography Term