Passmed 2 Flashcards
When would you request ultrasound for a lipoma?
Only request ultrasound if lipoma >5cm
Skin medication that can cause gynaecomastia
Ketoconazole
What type of hypersensitivity is ITP
Type II
Treatment for acne rosacea
Mild/moderate: metronidazole
Severe/resistant: oral tetracycline
Presents with a herald patch
Pityriasis rosea
Treatment for lichen planus
Topical steroids
Treatment of guttate psoriasis
Reassurance and topical treatment if lesions are symptomatic
How does impetigo begin?
Begins as red macules, then becomes yellow and crusted.
Treatment of pityriasis rosea
No treatment required
Treatment of fungal nail infections
Oral terbenifine
Does a viral or bacterial infection precede pityriasis roasea?
Viral
Presents with orange-red lesions with pinpoint redder spots on the penis
Zoons-balantitis
What type of infection may precipitate psoriasis (including guttate psoriasis)
Streptococcal sore throat
Spider naveii are associated with what?
Liver disease
Pregnancy
OCP
Treatment of seborrhoeic dermatitis
Ketazole shampoo
First line treatment for lichen sclerosis
Strong topical steroid
An uncircumcised man develops a tight white ring around the tip of his foreskin
Lichen sclerosis
Treatment for erythema nodosum
No treatment required, arrange routine follow up
Sunlight can exacerbate this condition
Acne rosacea
Main cause of erythema multiforme
Herpes
Medication that may cause patchy depigmentation in patients with darker skin
Topical corticosteroids
Trichophyton rubrum
Causes fungal toenails
Why do you need to do a chest x-ray in someone with erythema nodosum
To rule out the two most important causes of erythema nodosum - TB and sarcoidosis
How might you differentiate pyogenic granuloma from amelanotic melanoma?
Pyogenic granuloma usually has a history of trauma
Red or black lump, oozes or bleeds, sun exposed skin
Nodular melanoma
Treatment for pityriasis versicolour
Topical ketoconazole
How long does pityriasis rosea usually last?
6-12 weeks
What is keratoderma blennorhagica associated with?
Retier’s syndrome
Antibiotic used to treat erythrasma?
Erythromycin
