Biomaterial Database

Basal cell and squamous cell carcinomas. 1993

G J Selvin

New England College of Optometry, Boston, Massachusetts.

Basal cell and squamous cell carcinomas are actinic lesions that must be considered in the differential diagnosis of growths of the eyelid. Basal cell carcinoma is the most common eyelid cancer. It tends to grow slowly, and rarely if ever metastasizes. Basal cell carcinoma can, however, grow by direct extension to adjacent structures including the brain. Basal cell carcinoma can be managed by Moh's surgery, excision, cryosurgery, radiation, and chemotherapy. Squamous cell carcinoma has similar epidemiology to basal cell carcinoma. However, it grows much faster and it can metastasize (up to 20% of the time). It is best managed by conventional surgery, cryosurgery, and sometimes radiation. Squamous cell carcinoma can have a grim prognosis if not detected and treated promptly.

UI	MeSH Term	Description	Entries
D009361	Neoplasm Invasiveness	Ability of neoplasms to infiltrate and actively destroy surrounding tissue.	Invasiveness, Neoplasm,Neoplasm Invasion,Invasion, Neoplasm
D009918	Orbital Neoplasms	Neoplasms of the bony orbit and contents except the eyeball.	Neoplasm, Orbital,Neoplasms, Orbital,Orbital Neoplasm
D002280	Carcinoma, Basal Cell	A malignant skin neoplasm that seldom metastasizes but has potentialities for local invasion and destruction. Clinically it is divided into types: nodular, cicatricial, morphaic, and erythematoid (pagetoid). They develop on hair-bearing skin, most commonly on sun-exposed areas. Approximately 85% are found on the head and neck area and the remaining 15% on the trunk and limbs. (From DeVita Jr et al., Cancer: Principles & Practice of Oncology, 3d ed, p1471)	Carcinoma, Basal Cell, Pigmented,Epithelioma, Basal Cell,Rodent Ulcer,Ulcer, Rodent,Basal Cell Carcinoma,Basal Cell Carcinomas,Basal Cell Epithelioma,Basal Cell Epitheliomas,Carcinomas, Basal Cell,Epitheliomas, Basal Cell,Rodent Ulcers,Ulcers, Rodent
D002294	Carcinoma, Squamous Cell	A carcinoma derived from stratified SQUAMOUS EPITHELIAL CELLS. It may also occur in sites where glandular or columnar epithelium is normally present. (From Stedman, 25th ed)	Carcinoma, Epidermoid,Carcinoma, Planocellular,Carcinoma, Squamous,Squamous Cell Carcinoma,Carcinomas, Epidermoid,Carcinomas, Planocellular,Carcinomas, Squamous,Carcinomas, Squamous Cell,Epidermoid Carcinoma,Epidermoid Carcinomas,Planocellular Carcinoma,Planocellular Carcinomas,Squamous Carcinoma,Squamous Carcinomas,Squamous Cell Carcinomas
D005142	Eyelid Neoplasms	Tumors of cancer of the EYELIDS.	Eyelid Neoplasm,Neoplasm, Eyelid,Neoplasms, Eyelid
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D012307	Risk Factors	An aspect of personal behavior or lifestyle, environmental exposure, inborn or inherited characteristic, which, based on epidemiological evidence, is known to be associated with a health-related condition considered important to prevent.	Health Correlates,Risk Factor Scores,Risk Scores,Social Risk Factors,Population at Risk,Populations at Risk,Correlates, Health,Factor, Risk,Factor, Social Risk,Factors, Social Risk,Risk Factor,Risk Factor Score,Risk Factor, Social,Risk Factors, Social,Risk Score,Score, Risk,Score, Risk Factor,Social Risk Factor