This slideshow covers the basics of thyroid goitersâan enlargement of the thyroid gland. Some goiters can become so large that you can easily see them when you turn to the side. But are they typically benign? And who gets goiters, and how do you treat them?
Malignant Melanoma. Definition. Malignant melanoma is a type of cancer arising from the melanocyte cells of the skin. Melanocytes are cells in the skin that produce a pigment called melanin. Malignant melanoma develops when the melanocytes no longer respond to normal control mechanisms of cellular growth.
The term malignant neoplasm means that the tumor is cancerous. You indicated that this is a preliminary diagnosis, and while it may have been based on observation by the doctor â that is, how the lesion looked on colonoscopy â the biopsy of the lesion can tell you and your doctor if it is indeed malignant or not.ou indicated that this is a preliminary diagnosis, and while it may have been based on observation by the doctor â that is, how the lesion looked on colonoscopy â the biopsy of the lesion can tell you and your doctor if it is indeed malignant or not.