Glossar

It can be a hereditary (genetic) or contagious (infectious) disease.

A circumscribes lesion >1 cm in diameter that contains fluid.

Widened open (blackhead) or closed (whitehead) hair follicle openings filled with keratin.

Rough and often dry skin with small or deep tears.

Dried serum, blood or pus on the surface of the skin.

Flaking/scaling of the skin on the scalp, may feel itchy.

Absent skin colour, white area of skin (different from hypopigmentation).

Round skin-coloured papule with a central dimple/depression and cheesy content.

Superficial loss of skin, abrasion.

A fistula is an abnormal and small tunnel between two body cavities or between a body cavity and the skin.

Increased skin colour/darkening of the skin.

Decreased skin colour/lightening of the skin.

Thickened skin with exaggeration of the normal skin lines and deepening of the natural creases, looks a bit like leather/leathery skin.

A flat, non-palpable lesion with well-defined edges that is different to the surrounding skin. It can be any colour or shape.

Abnormality in the skin, e.g. lump, ulcer, wound, or (dis)coloured area.

Swelling or bump in or under the surface of the skin.

Swelling or elargement of body part/limb or skin area can be hard or soft.

Slow discharge of fluid.

Superficial small, solid bump.

A palpable lesion with well-defined edges. Plaques are flat but elevated (while macules are non-elevated and non-palpable).

Vesicle/blister filled with pus.

In dark skin redness often appears as darkening of the skin.

Round abnormality in the skin, e.g. lump, ulcer, wound or (dis) coloured area.

Flake of dry skin.

Scar tissue is a fibrous tissue that develops as part of the healing process of damaged skin by disease, injury (e.g. cut, sore, burn), or surgery.

Round/oval shaped wound or deep sore in the skin, with red or yellow base, and sometimes with crust. The wound bed continues underneath the skin at the edges.

Round/oval-shaped wound or deep sore in the skin, with red or yellow base, and sometimes with crust.

Circumscribed lesion ≤ 1 cm in diameter that contains fluid.

A white circumscribes, palpable lesion. Plaques are flat but elevated (white macules are non-elevated and non-palpable).