Dermatology Flashcards
Erythrodermic psoriasis treatment
Topical emollient (soft white paraffin)
Steroids contra-indicated as can precipitate generalised pustular psoriasis
Scaly rash involving nasolabial folds, eyebrows, scalp and skin overlying sternum
Seborrhoeic dermatitis
Hereditary haemorrhagic telangiectasia
(Inheritance)
Autosomal dominant
Reddish-brown lesions on back and chest
Palpation of lesion causes erythema + pruritus
Rash name?
Association?
Urticaria pigmentosa
Systemic mastocystosis
Systemic mastocystosis
Test
Urinary histamine
asymptomatic, flat, slightly scaly, pink or brown rash usually found in the groin or axillae
Erythrasma
hyperpigmentation and thickening of the skin in her groin and axilla
acanthosis nigricans
Skin cancer most common post renal transplant (immunosuppression)
Squamous cell carcinoma
hypersensitivity reaction triggered by infection (HSV, strep)
Target lesions
Initially seen on back of hands/feet before spreading to torso
Eythema multiforme
Painful lesions
covering most of the lateral aspect of the lower right and upper left leg
mottled skin
areas of black necrotic tissue
associated with ESRD
calciphylaxis
(accumulations of calcium in blood vessels)
Papular lesions - hyperpigmented and depressed centrally
granuloma annulare
Pityriasis rosea
Features
Links to which virus
Herald patch -> oval patch on abdomen/trunk
Spreads to thighs, chest, arms over weeks
Spares face
Links to human herpes virus type 7
Eczema herpeticum
Herpes simplex virus 1
Seborrhoeic dermatitis
treatment
Topical ketonazole
Erythema multiforme and pneumonia
Mycoplasma
