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CPT Study Guide Vocabulary

Actinic Keratosis

A premalignant warty lesion occurring on the sun-exposed skin of the face or hands in aged light-skinned people.

Benign Lesion

A tumor that does not form metastases, and does not invade and destroy adjacent normal tissue.


A process of removing tissue from a patient for macroscopic diagnostic examination.

Congenital Nevus

A melanocytic nevus that is visible at birth, is often larger than an acquired nevus.

Contact Dermatitis

Acute or chronic dermatitis caused caused by initial irritant effect of a substance that comes in contact with the skin.


Removal of foreign materials, necrotic matter, and devitalized tissue from a wound or burn.

Decubitis Ulcer

Focal ischemic necrosis of skin and underlying tissues at sites of constant pressure or recurring friction.


Procedure used to remove acne scars or pits, performed with sandpaper or other abrasive materials.


A slowly-growing, benign skin nodule consisting of poorly demarcated cellular fibrous tissue.


A physician who specializes in diagnosing and treating cutaneous and related systemic diseases.


An instrument for cutting thin slices of skin for grafting or excising small lesions.


Directly below the epidermis, this is the second layer of the skin.

Dysplastic Nevus

Cutaneous pigmented lesions with notched, irregular borders, considered pre-malignant.


The outer layer of the skin.


A thick, crusty covering or slough that develops after thermal or chemical burn or cauterization of the skin.


Excessive development of the male mammary glands.


A contagious superficial pyoderma, caused by Staph or group A Strep.

Intradermal Nevus

A nevus in which nests of melanocytes are found in the dermis, but not at the epidermal-dermal junction.


A nodular, firm, often linear mass of hyperplastic, thick scar tissue.


Any disease caused by a fungus.


Pathologic death of one or more cells, or of a portion of tissue or organ, resulting from irreversible damage.


A circumscribed malformation of the skin, especially one that is colored by hyperpigmentation.

Pilonidal Cyst

Hair-containing cyst or sinus in the tissues of the sacrococcygeal area.




A common inherited condition characterized by the eruption of reddish, silvery-scaled maculopapules.


Over-activity of the sebaceous gland, resulting in an excessive amount of sebum.

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