Is a lesion the same as 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.
Does homogeneous mass mean cancer?
With regard to neoplastic conditions, benign soft-tissue tumors generally show well-defined homogeneous contrast enhancement, whereas malignant tumors are usually irregular and show heterogeneous enhancement.
Are lytic lesions always cancer?
Lytic lesions — spots where bone tissue has been destroyed — can be seen in other cancers, including breast cancer, lung cancer and kidney cancer. They can also be seen with infections of bone and even in some benign conditions.
Can lesions go away?
“Paradoxically, we see that lesion volume goes up in the initial phases of the disease and then plateaus in the later stages,” Zivadinov says. “When the lesions decrease over time, it’s not because the patient lesions are healing but because many of these lesions are disappearing, turning into cerebrospinal fluid.”
Can an MRI tell if a lesion is benign or malignant?
MRI is a well-established tool for the detection and local staging of soft-tissue tumours. However, its ability to differentiate between benign and malignant soft-tissue lesions has been found to vary widely [6-8,10-12].
Are bone lesions always cancer?
Most bone lesions are benign, meaning they are not cancerous. Some bone lesions are cancerous, however, and these are known as malignant bone tumors.
Can lesions in the brain heal?
The prognosis for surviving and recovering from a brain lesion depends upon the cause. In general, many brain lesions have only a fair to poor prognosis because damage and destruction of brain tissue is frequently permanent. However, some people can reduce their symptoms with rehabilitation training and medication.
What is the difference between lesion and cyst?
As nouns the difference between lesion and cyst is that lesion is a wound or injury while cyst is a pouch or sac without opening, usually membranous and containing morbid matter, which develops in one of the natural cavities or in the substance of an organ.
Are lesions always cancerous?
Lesions can be categorized according to whether or not they are caused by cancer. A benign lesion is non-cancerous whereas a malignant lesion is cancerous. For example, a biopsy of a skin lesion may prove it to be benign or malignant, or evolving into a malignant lesion (called a premalignant lesion).
What is a cancer lesion?
Cancerous lesions are the result of the uncontrolled growth of cancer cells in and on the liver. Doctors suspect that focal nodular hyperplasia (FNH) may be caused by a defect in the way the veins and arteries are formed within the liver. This is the second most common type of liver lesion.
What is the difference between lesion and mass?
A mass has an increased size of the adrenal gland with the distinct size shape difference than the normal gland. A lesion may include the mass but usually is reserved for areas with lack of blood supply or normal size of gland, changing shape and appearance.
