What is meant by mass lesion?
Brain mass lesions are a broad collection of pathological processes that result in changes on brain imaging (usually CT or MRI). They are a very disparate group of conditions ranging from infection (abscess) to brain tumors (benign and slow-growing, metastatic or primary high-grade brain tumor).
Whats the difference between a mass and a lesion?
Lesions are not isolated to the skin; there are also vascular lesions (vascular malformations of the venous, arterial, and lymphatic systems, i.e., infantile hemangiomas). Mass – A quantity of material, such as cells, that unite or adhere to each other.
Is a lesion considered a tumor?
A bone lesion is considered a bone tumor if the abnormal area has cells that divide and multiply at higher-than-normal rates to create a mass in the bone. The term “tumor” does not indicate whether an abnormal growth is malignant (cancerous) or benign, as both benign and malignant lesions can form tumors in the bone.
What is solid mass lesion?
An abnormal mass of tissue that usually does not contain cysts or liquid areas. Solid tumors may be benign (not cancer), or malignant (cancer). Different types of solid tumors are named for the type of cells that form them. Examples of solid tumors are sarcomas, carcinomas, and lymphomas.
What causes a lesion?
The most common causes of skin lesions are injury, aging, infectious diseases, allergies, and small infections of the skin or hair follicles. Chronic diseases such as diabetes or autoimmune disorders can cause skin lesions. Skin cancer or precancerous changes also appear as skin lesions.
What is ovoid mass?
Benign breast lesions also tend to be ovoid or round in shape, and are often ‘wider-than-tall’ (which indicates a parallel orientation to the chest wall). The echo texture of a benign mass will usually be homogeneous with an isoechoic, hyperechoic, to mildly hypoechoic echogenicity.
What does lesion mean in medical terms?
Listen to pronunciation. (LEE-zhun) An area of abnormal tissue. A lesion may be benign (not cancer) or malignant (cancer).
What causes lesion?
What lesion means?
1 : injury, harm. 2 : an abnormal change in structure of an organ or part due to injury or disease especially : one that is circumscribed (see circumscribe sense 1) and well defined. Other Words from lesion Example Sentences Learn More About lesion.
How do you treat lesions?
If needed, benign skin lesions can get local treatment with topical medications, such as retinoids, corticosteroids, or antimicrobial agents, as well as laser therapy, cryotherapy, phototherapy, or surgical removal. If the skin lesion is caused by a systemic disease, treatment may also address the underlying cause.
What does ovoid hypoechoic lesion mean?
Ovoid means oval in shape and hypoehoic lesion means an area that is not reflecting sounds waves as much as the surrounding. This usually happens when there is a fluid filled area in a normal tissue or the area can also be hypoehoic when a soft tissue is present in an area of bone.
What is an example of a hypoechoic lesion?
One example of a hypoechoic mass, seen in the thyroid gland, is a benign tumor called a follicular adenoma. Confusingly, follicular adenomas may also appear hyperechoic, where more sound waves are reflected back, giving a brighter appearance.
What is a hyperechoic lesion?
A hypoechoic lesion is an abnormal area that can be seen during an ultrasound examination because it is darker than the surrounding tissue. Such abnormalities can develop anywhere in the body and do not necessarily indicate cancer.
What is a hypoechoic lesion in the myometrium?
The normal myometrium is used as a standard to evaluate echogenicity of other structures in the myometrium, i.e.,structures that are as echogenic as the normal myometrium are considered to be isoechoic. Lesions that are less echogenic are termed hypoechoic, whereas those which are more echogenic aretermed hyperechoic.