The term "isoechoic" refers to a similar pattern in which echoes are heard, usually between two or more neighboring masses of tissue. Isoechoic conditions are generally picked up by ultrasounds. There are many different types of cancers in which the masses have isoechoic tendencies, or when the masses are so close to each other that it almost seems as if they share the same echo patterns.
Sonograms are usually the defining factor in recognizing isoechoic masses within a living organism. When two masses of tissue have a similar sound in the echoes that they produce, it is then said that they are isoechoic. Isoechoic masses can easily be found in the body, particularly when regarding different types of cancer. One of these cancers includes breast cancer (The Johns Hopkins University, n.d.), a type of cancer in which either malignant or benign lumps form in the breast and seem to share some of the same echo patterns. This is why ultrasounds are able to catch the concerning echo patterns before the cancers have any more time to continue forming within the organism or cause any harm. The earlier that the isoechoic wave length patterns are found, the sooner that treatment can begin.