According to the American Heritage Medical Dictionary, euthyroidism refers to either the physiological state one has if her thyroid hormone serum levels are normal or it is the regular, healthy functioning of the thyroid gland. Euthyroidism is in contrast with abnormal thyroid function in the form of hyperthyroidism or hypothyroidism.
Hyperthyroidism refers to the condition of having an overactive thyroid, while hypothyroidism refers to having an underactive thyroid. The American Thyroid Association states that euthyroid sick syndrome describes abnormal thyroid hormone concentrations that occur without thyroidal illness. Instead, non-thyroidal illnesses cause low concentrations of triiodothyronine, total thyroxine and thyroid stimulating hormones.Learn More
Goiter refers to an abnormal enlargement of the thyroid gland, which is a butterfly-shaped gland found at the base of the neck, explains Mayo Clinic. It is often painless although a large goiter causes coughing and makes it hard for a person to breathe or swallow.Full Answer >
An echogenic lesion in the liver is a lesion which appears in the results of a liver ultrasound as either a lighter or darker coloring than the surrounding liver tissue. According to Wikipedia, echogenicity is the ability to bounce an echo back from tissue during an ultrasound examination.Full Answer >
The term "pelvic phlebolith" refers to a small mass that grows in the wall of a vein in the pelvic region. Pelvic phleboliths resemble an accretion of lime or calcium, and they are generally harmless. Since they do not ordinarily manifest symptoms, it is common for them to be detected only incidentally to a pelvic X-ray, according to Reference.com.Full Answer >
According to the National Center for Biotechnology Information, "hypoechoic" refers to being filled with fluid or solid. A hypoechoic ovarian cyst is therefore a mass on the ovaries that is solid or fluid-filled. Depending on the complexity of the cyst, a hypoechoic ovarian cyst might be cancerous or benign, Ovary Disease points out.Full Answer >