Skin lesions of Surgical importance

Terms (of surgical importance) used to describe skin pathology
Macule Localized change in color of the skin

Not elevated (or palpable) or freckled

Papule Small solid elevation

Flat toped, conical, rounded, polyhedral, follicular (hairs), smooth or scaly

Vesicle Small collection of fluid

Between the dermis and epidermis (a blister)

Bulla Collection of fluid larger than a vesicle

Under epidermis

Wheal Transient elevation of the skin caused by edema
Cyst Tumor that contains fluid
Naevus Lesion present from birth

Composed of mature structures normally found in the skin but present in excess or an abnormal disposition

Also used to describe lesions composed of naevus cells as melanocytic or pigmented naevi

Papilloma Benign overgrowth of epithelial tissue
Tumor Literally, a swelling

Commonly but inaccurately used to mean an malignant swelling

Hamartoma Overgrowth of one or more cell types that are normal constituents of the organ in which they arise

The commonest examples




Ulcer Area of solution of an epithelial surface

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