The Omentum is the largest peritoneal fold in human body

often involved by other parts disease. Its clinical manifestations is lack of specificity. So a clear diagnosis is helpful to make the next diagnosis and treatment plan. As a simple

noninvasive and effective method

ultrasound can be used as the first choice of imaging examination for omental lesions. With the application of ultrasonic elastography

it has higher sensitivity and specificity in the preoperative diagnosis of omental lesions.The definite diagnosis of omental disease depends on pathological examination. Ultrasound guided biopsy of omentum is a minimally invasive and efficient method for obtaining specimens

which can be used as the first choice for obtaining pathological tissues. This paper reviews the application status of conventional ultrasound and elastography in omental diseases.