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In general imaging ultrasound, "hypoechoic" describes tissues or structures that appear darker than surrounding areas on an ultrasound image. This reduced brightness indicates that these tissues reflect fewer sound waves back to the transducer. Hypoechoic lesions often suggest a lower density or a higher fluid content compared to adjacent structures, such as solid masses, cysts,…

In general imaging, anechoic refers to structures that appear completely black on an ultrasound image because they do not reflect sound waves. This lack of echoes is characteristic of fluid-filled areas such as cysts, blood vessels, or the gallbladder. Identifying anechoic structures is crucial for accurate diagnosis in medical ultrasound, helping differentiate between solid masses…

Echotexture refers to the characteristic appearance of tissues and organs on an ultrasound image, reflecting their internal composition and structure. In general imaging, understanding echotexture is crucial for accurate diagnosis. For instance, a homogeneous echotexture suggests uniform tissue, while a heterogeneous or mixed echotexture can indicate abnormalities like inflammation, masses, or fibrosis. Terms like "hyperechoic,"…