‌Hyperechoic. This term means “lots of echoes.” These areas bounce back many sound waves. They appear as light gray on the ultrasound. Hyperechoic masses are not as dense as hypoechoic ones are. They may contain air, fat, or fluid.

What does hyperechoic mean?

Hyperechoic – A relative term that refers to the echoes returning from a structure. Hyperechoic tissues generate a greater echo usually displaying as lighter colors during ultrasound imaging. Hypoechoic – Refers to structures that create weaker echoes such as a fluid.

Is hypoechoic good or bad? Generally, lesions that are hyperechoic to the subcutaneous fat are benign. Because a majority of both malignant and benign solid breast masses are hypoechoic, other features, such as margin characteristics, establish the level of suspicion.

Is hyperechoic a cancer?

Breast cancer can rarely be hyperechoic, but other ultrasound features are usually also present, suggesting the diagnosis, such as poorly circumscribed margins, irregular shape, posterior attenuation, a more vertical axis [17].

Is hyperechoic normal?

Each tissue type, such as liver, spleen or kidney, has a particular echogenicity in its normal state. In diseased states, the echogenicity of an organ can be altered, either more echogenic (hyperechoic) or less echogenic (hypoechoic) than usual.

Is blood hyperechoic on ultrasound?

Blood clots will be echogenic under the same conditions: red blood cells aggregated non hemolyzed. Their echogenicity appears more dependent of their structure than of the chronology. Better technical conditions will increase the clot echogenicity, too.

Is hypoechoic or hyperechoic better?

Hypoechoic: Gives off fewer echoes; they are darker than surrounding structures. Examples include lymph nodes and tumors. Hyperechoic: Increased density of sound waves compared to surrounding structures. Examples include bone and fat calcifications.

What percentage of hypoechoic nodules are malignant?

About 2 or 3 in 20 are malignant, or cancerous. Malignant nodules can spread to surrounding tissues and other parts of the body. Solid nodules in your thyroid are more likely to be malignant than fluid-filled nodules, but they’re still rarely cancerous.

What percentage of hypoechoic masses are malignant?

In addition increase in vascularity in the hypoechoic mass predicts malignancy about 82% of the time. The ultrasound image below shows an irregular vascularized retroareolar mass, with calcifications. This is very likely to be infiltrating ductal carcinoma and your doctor will recommend a biopsy straight away.

Why is breast fat hypoechoic?

Fat has classically been described as hyperechoic on sonograms because of its acoustic impedance relative to surrounding tissue, although certain types of fat in certain anatomic locations can be hypoechoic.

What does a hyperechoic liver mean?

Abstract. Ultrasound is the most common modality used to evaluate the liver. An echogenic liver is defined as increased echogenicity of the liver parenchyma compared with the renal cortex. The prevalence of echogenic liver is approximately 13% to 20%.

Can a hypoechoic nodule be benign?

These nodules are widespread, but most are benign. Doctors typically evaluate thyroid nodules using ultrasound scans. Hypoechoic thyroid nodules appear dark relative to the surrounding tissue. These type of nodules are usually solid rather than a fluid-filled lesion.

What is the difference between echogenic and hyperechoic?

Tissues that have higher echogenicity are called “hyperechogenic” and are usually represented with lighter colors on images in medical ultrasonography. In contrast, tissues with lower echogenicity are called “hypoechogenic” and are usually represented with darker colors.

What does hyperechoic pancreas mean?

Hyperechoic pancreas was defined as a homogeneous echogenicity of the pancreatic body that was slightly lower than or equal to the echogenicity of retroperitoneal fat.

What does hyperechoic kidney mean?

With regard to the kidney, echogenicity generally refers to how bright or dark the kidney parenchyma appears in comparison to the liver.

What does hypoechoic pancreas mean?

The differential diagnosis of a vague hypoechoic lesion of the pancreas includes normal changes, chronic pancreatitis (including focal), lobularity (normal parenchyma surrounded by fibrous bands), and, much less likely, a neuroendocrine tumor, lymphoma, metastatic tumor, or early cancer.