An omental mass, in abdominal ultrasound, refers to an abnormal growth or collection of tissue within the omentum, a fatty apron of tissue that hangs from the stomach and colon. These masses can be benign, such as omental cysts or inflammatory pseudotumors, or malignant, often indicating metastatic disease from primary abdominal or pelvic cancers. Ultrasound is a valuable initial imaging modality for detecting and characterizing these lesions due to its non-invasiveness and ability to assess fluid collections and vascularity.
Identifying an omental mass on medical ultrasound warrants further investigation, as its presence can signify underlying pathology, including infection, inflammation, or malignancy. Sonographic features like size, echogenicity, internal architecture, and presence of ascites can help differentiate between various etiologies. Early detection and characterization through abdominal ultrasound are crucial for guiding subsequent diagnostic procedures and treatment planning for patients with suspected omental abnormalities.
