SKIN DISEASES AND DISORDERS – STUDENT WORKSHEET
WHAT ARE SKIN DISEASES
This is any departure from the normal state of health of the skin
DEFINITIONS
WHAT ARE LESIONS?
A lesion is a pathological change in a bodily organ or tissue
Primary Lesions
Are an initial alternation in the skin
Secondary Lesions Are due to the primary lesion becoming worse in some way
Tertiary Lesions
Only occur with serious diseases, after primary and secondary
Acute Disease
Symptoms have a more violent nature and are short of duration
Chronic Disease
Of long duration, usually mild and recurring
Infections
Pathogenic germs taken into the body due to contact with contaminated
people or objects
Contagious
Disease communicable by contact
Congenital
Disease
Present at birth
Seasonal Disease
Influenced by the weather
Occupational
Disease
Due to constant contact with irritants at work
Parasitic Disease
Caused by vegetable or animal parasite
Pathogenic
Disease
Caused by disease causing bacteria
Systemic Disease
Due to under or over active internal glands
Allergy
A sensitivity developed to normally harmless substances
Inflammation
Showing characteristics of redness, pain, swelling, heat and possible
Itching
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Primary Lesions
Cause and appearance
Macule
Ephelides
Papule
Pustule
Wheal
Hives/Urticaria
Vesicles
Secondary Lesions
Cause and appearance
Scale
Scar
Stain
Keloid Scar
Bacterial Infections
Cause and appearance
Impetigo
Boils (Carbuncle)
Folliculitis
Fungal Infections
Cause and appearance
Tinea Pedis
Tinea Capitis
Tinea Corporis
Pityriasis Versicolour (Tinea
Versicolour)
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Viral Infections
Cause and appearance
Herpes Simplex (Cold Sores)
Herpes Zoster
Warts (Verruca Vulgaris)
Verruca (Verruca Plantaris)
Insect Infections
Cause and appearance
Pediculosis Capitis
Pediculosis Corporis
Scabies
Disorders of the
Sebaceous Gland
Cause and appearance
Seborrhoea
Sebaceous Cyst (Steatoma)
Comedone (Blackhead)
Milia
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Disorders of the Skin due
to Colour
Cause and appearance
Hyperpigmentation
Hypopigmentation
Port Wine Stain
(Haemangioma)
Strawberry Mark
Chloasma
Dematosis papulosa nigra
Leucoderma
Liver Spots
Ephelides
Lentigines
Naevus
Papillomas (Moles)
Spider Naevus
Telangiectasia
Erythema
Disorders of the Skin due
to Sweat Glands
Cause and appearance
Prickly Heat (Milaria Rubra)
Anidrosis
Skin Cancers
Cause and appearance
Squamous Cell Carcinoma
Basal Cell Carcinoma (Rodent
Ulcer)
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Skin Conditions
Cause and appearance
Rosacea
Acne
Acne Vulgaris
Skin Tags
Cyst
Atopic Eczema
Allergic Eczema
Occupational Eczema
Contact Dermatitis
Exfoliative Dermatitis
Occupational/Industrial
Dermatitis
Sensation Dermatitis
Traumatic Dermatitis
Varicose Dermatitis
Psoriasis
Allergy
Hyperkeratosis
Urticaria (hives)
Uv damage
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