Dermatology Flashcards
Psoriasis flare (extensor)
First line with potent topical corticosteroid and a separate topical vitamin D preperation
Psoriasis flare (flexor)
First line with mild to moderate topical steroid
New-onset purpura
In children all cases should be referred immediately to rule out vasculitis and meningococcal disease
Pityriasis rosea
Skin infection that causes a rash and commonly resolves within 6-12 weeks
Acne rosacea
- mild to moderate manged with topical metronidazole
- severe or resistant with oral tetracycline
Dermatophyte nail infection
Manage with oral terbinafine
Erythrasma
Bacterial infection by normal skin flora that is managed with erythromycin
Pyoderma gangrenosum
Associated with IBD, RA, AML, and myeloproliferative disorders
Atopic eruption of pregnancy
Most common dermatosis in pregnancy and leads to itchy, erythematous papules on the face, neck, chest and extensor surfaces
Lichen sclerosus
Managed with topical steroids such as clobetasol propionate
Vitiligo
Associated with other autoimmune conditions
Pompholyx eczema
Precipitated by humidity and high temperatures
Salmon patch
Present from birth as a blanching vascular birthmark that usually affects the neck and self resolves
Basal cell carcinoma
- rolled pearly edges
- telangiectasia
- central crater
Scabies
- all members of a household should be treated
- typically affects the fingers, interdigital webs and flexor aspects of the wrist
- causes delayed type IV hypersensitivity reaction
- malathion can be used for eradication therapy
TEN
Rare but important side effect of with penicillin’s, anti seizure drugs and other medications
Seborrheic dermatitis
Complications include blepharitis and otitis externa
Molluscum contagiosum
- peads dermatology
- Koebner phenomenon with lesions occurring at injury sites
- small, raised pink papules with a central dimple
Nodular melanoma
Red or black lump that oozes or bleeds, commonly linked to sun exposure
Spider naevi
Small lesions with radiating blood vessels that refill from the centre and are associated with liver disease
Acanthosis nigricans
Typically appear as velvety patches which affect the axilla, neck and groin
Curlings ulcer
Stress ulcers in the duodenum can occur in burns patients
- commonly affects children
- vomiting
- haematemesis
- tachycardia
Rhabdomyolysis
Can occur in electrical high voltage burns and need aggressive IV fluids
Circumferential burns
May constrict the limb causing compartment syndrome
Milia
Common finding in neonates and appear as tiny white papules often on the nose and face
Granuloma annulare
A papular lesion that is slightly hyperpigmented and depressed centrally, commonly seen on the dorsal surface of the hands and feet
Acanthosis nigricans
- gastric adenocarcinoma
- Cushing’s disease
- PCOS
- acromegaly
