Erythroderma
A severe generalised skin condition characterised by redness and scaling affecting more than 90% of the body surface area.
Acantholysis
The loss of intercellular connections between keratinocytes, resulting in the separation of epidermal cells from one ano...
Acanthosis
Diffuse epidermal hyperplasia characterised by thickening of the stratum spinosum (prickle-cell layer) of the skin.
Acneiform Eruption
A skin reaction characterised by papules and pustules resembling acne vulgaris but caused by a drug, chemical, or system...
Acral Lentiginous Melanoma
A subtype of melanoma arising on the palms, soles, or beneath the nail plate, often diagnosed late due to its atypical l...
Actinic Keratosis
A rough, scaly premalignant lesion on sun-damaged skin caused by chronic ultraviolet radiation exposure, considered a pr...
Alopecia Areata
An autoimmune condition causing non-scarring, patchy hair loss from the scalp or other hair-bearing areas.
Angioedema
A transient, localised swelling of the deep dermis, subcutaneous tissue, or submucosa caused by increased vascular perme...
Auspitz Sign
A clinical sign in which removal of psoriatic scale produces multiple pinpoint bleeding points, reflecting the thinned s...
Basal Cell Carcinoma
The most common form of skin cancer, arising from basal keratinocytes in the epidermis, with characteristic slow growth...
Biologics
A class of large-molecule therapeutic agents derived from biological sources, including monoclonal antibodies targeting...
Biopsy Report
A formal document issued by a pathology laboratory describing the histopathological findings of a skin tissue sample, in...
Breslow Thickness
A histological measurement, in millimetres, of the vertical depth of a melanoma from the granular layer of the epidermis...
Bulla
A fluid-filled blister exceeding 5 mm in diameter, the large-lesion counterpart to a vesicle.
Cantharidin
A vesicant chemical derived from blister beetles used topically to treat molluscum contagiosum and warts.
Comedonal Acne
A subtype of acne vulgaris dominated by non-inflammatory open (blackhead) and closed (whitehead) comedones, with minimal...
Comedone
A plugged hair follicle unit consisting of sebum, keratin, and dead cells, representing the primary lesion of acne vulga...
Cryosurgery Report
A procedural document recording the clinical indication, freeze-thaw cycle parameters, and outcome of cryosurgical treat...
Cryotherapy
A dermatological procedure in which liquid nitrogen (~−196 °C) is applied to a lesion to destroy abnormal tissue through...
Cryotherapy Consent Form
A procedure-specific patient consent document outlining the nature, risks, and anticipated outcomes of liquid nitrogen c...
Dermatitis Herpetiformis
A chronic, intensely pruritic blistering dermatosis associated with coeliac disease, characterised by symmetrical papulo...
Dermatofibroma
A common benign fibrous nodule of the dermis, most frequently found on the lower limbs, that displays a characteristic d...
Dermatographism
A form of physical urticaria in which firm stroking of the skin produces a linear wheal-and-flare response.
Dermatology Life Quality Index
A validated 10-item patient-reported outcome questionnaire measuring the impact of skin disease on health-related qualit...
Dermographometer
An instrument used to measure the pressure threshold at which dermographism (skin writing) is elicited, providing an obj...