Primary Morphologic Terms Flashcards
1-Name this primary skin morphology
2-Describe 3 features
3-Give 6 classic diagnosis to the answer of Q1
1-Macule (Patch)
2-a) Flat lesion (<1cm=macule and >1cm=patch)
b) Circumscribed
c) Colour change cannot be appreciated by tactile sensation
3-Vitiligo, Cafe-au-lai spot, flat component of exanthems/rashes e.g. measles (macular exanthem); lentigo, Mongolian Spot (blue), Port wine stain (red)
1-Name this primary skin morphology
2-Name three features
3-Name 6 diagnostic examples
1-Papule
2-a) Elevated b) <1cm in diameter c) Confluence of papules may lead to secondary features e.g. crust, scale, plaque
3-Lichen Nitidus, Elevated compinent of Exanthems e.g. measles (papular exanthem), Melanocytic naevi, Verruca or Molluscum, Lichen Planus, Guttate Psoriasis
1-Name this primary skin morphology
2-Name three features
3-Name five diagnosis that could present with this morphology
1-Plaque
2-a) Elevated lesion, b) >1cm in diameter, c) Often has secondary features e.g. scale and crust
3) Psoriasis Vulgaris, Lichen Simplex Chronicus, Eczematous Plaques, Granuloma Annulares, Sarcoidosis
1-Name this primary morphology
2-What tissue may it involve?
3-How does it differ from a papule?
4-Name five differential diagnosis
1-Nodule
2-Epidermis, Dermis and Subcutaneous Tissue
3-Depth of involvement and size
4-Neurofibromatosis, Lipoma, BCC, Cutaneous Lymphoma, Erythema Nodosum
1-Name these skin primary morphologies according to size
2-What are three main features
3-What are three ddx for <1cm and six ddx for >1cm
1-Vesicle (<1cm) & Bulla (>1cm)
2-Elevated lesion, filled with clear fluid, well circumscribed
3-Herpes Simplex Virus (picture), Varicella Zoster Virus & Dermatitis Herpetiformis. Epidermolysis Bullosa (picture), Bullous drug eruption, Bullous Pemphigoid, Pemphigous, Linear IgA Bullous Disease, Porphyria.
1-Name this primary morphology
2-Name four features
3-Name five diagnosis with pustules
1-Pustule
2-Circumscribed, contain purulent material, <1cm in diameter, elevated lesion
3-Acute generalised pustular exanthem (picture), Candidiasis, Folliculitis, Pustular Psoriasis, Subcorneal Pustular dermatosis
1-Name this primary morphology
2-Name three features
3-Why are some wheals white?
4-What are three diagnosis assicated with this?
1-Wheal
2-Firm oedematous papule or plaque, Evanescent, Pruritic
3-Urticaria (picture), Dermatographism, Urticaria Pigmentosa/Maculopapular Cutaneous Mastocystosis
1-Name this secondary morphology
2-Name two features
3-Name three disorders associated with this morphology
1-Crust
2-Dried serum, blood or purulent exudate & antecedent to primary lesion
3-Impetigo, Resolving dermatitis, resolving vesiculobullous diseases
1-Name this secondary morphology
2-Name three features
3-What two classic diagnosis is this associated with?
1-Erosion
2-Defect only of the epidermis, sharply circumscribed, red & oozing base.
3-Base of pemphigus bullous lesions, Superficial trauma (abrasion)
1-Name this secondary morphology
2-Which layer of the skin do these originate?
3-Name a localised scaly rash present for <6/52 (5 types)
4-Name three differentials for generalised scaly rash present <6/52 with fever
5-Name three differentials for generalised scaly rash present <6/52 with NO fever
6-Name ten localised scaly rash present for >6/52
1-Scales (squames)
2-Stratum Corneum
3-Tinea Corporis, Cruris, Manuum, Pedis, Facei
4-Scarlet fever, Kawasaki syndrome, Exfoliative Dermatitis
5-Pityriasis Rosea, Acute Guttate Psoriasis, Pityriasiform or lichenoid drug eruption
6-Seborrhoeic Dermatitis, Psoriasis, Discoid Lupus Erythematosus, Keratosis Pilaris, Pityriasis Versicolour, Annular Erythema, Palmoplantar Keratoderma, Crusted Scabies, Lichen Planus, Pityriasis Rubra Pilaris
1-What is this secondary morphology?
2-What two features?
3-What signs do you look for that may indicate the cause?
4-Name five classic diagnosis
1-Ulcer
2-Loss of Epidermis, Dermis &/or Subcutis; Heals with scar.
3-If borders are elevated/undermined, hard, soggy, location of ulcer, discharge, associated features nearby e.g. nogules, excoriations, varicositis, hair distribution, presence/absence of sweating, arterial pulses
4-Arterial Ulcer, Venous Ulcer, Ulcerated Necrobiosis lipoidica (photo), Chancroid, Primary Syphilis
1-Name the secondary morphology
2-Name three features
3-Name three associated diagnosis
1-Excoriation
2-Partial loss of epidermis and superficial dermis, often linear, may be associated with scars from old excoriations
3-Neurotic Excoriation (photo), Pruritis Vesiculobullous disorders (e.g. dermatitis herpetiformis), Pruritic Dermatitis
1-Name this secondary morphology
2-Describe two features
3-What are two associated diagnosis?
1-Fissure
2-Sharply defined walls, Vertical loss of epidermis and dermis
3-Dermatitis (many forms) & Xerosis (dry skin)
1-What is this secondary morphology and what is the definition?
2-What is the difference between epidermal and dermal layers if affected?
1-Skin Atrophy. Refers to a diminution of some or all layers of the skin.
2-a) Epidermal atrophy is manifested by thinning of the epidermis, it becomes transparent, revealing papillary and subpapillary vessels b) In dermal atrophy, there is loss of connective tissue of the dermis and therefore depression of the lesion.
