tumor, mass or neoplasm
mild, non-malignant neoplasm; lack the characteristics of malignancy
- usually localized
- do not invade other tissues
- do not spread away from the primary focus
- remain differentiated - similar to tissues of origin.
effects due to increased size, but not to metastases.
less differentiated; losing recognizability as the tissue from which they originated
malignant neoplasm derived from epithelial cells
(most commonly occurring type of cancer)
squamous cell carcinoma
invade surrounding tissues
may (likely) recur after attempted removal
cause death unless adequately treated.
new, recent e.g. neoplasm
Stedman's Med-Dict. -- an abnormal tissue that grows by cellular proliferation more rapidly than normal and continues to grow after the stimuli that initiated the new growth cease.
- lack normal structural organization
- lack normal function & control of normal tissues
- usually form a distinct mass of tissue
- may be either benign or malignant
bulk, mass, tumor
the specialty dealing with the physical, chemical and biologic features of neoplasms.
something formed, organized, formative e.g. neoplasm
malignant neoplasm arising from connective tissues
proliferation of mesodermal cells
- muscle, bone, connective tissue
- usually highly malignant
- less common than carcinomas
[G. sark-, sárx] = flesh
(used for malignant neoplasms)
[G. karkinos] = crab, cancer
pertaining to cancer of epithelial tissues covering body and lining body cavities and organs