Dermatology- Cutaneous Horn Flashcards by Blessita Sabu

What is cutaneous horn?

Cutaneous horns (cornu cutaneum) are uncommon lesions consisting of keratotic material resembling that of an animal horn. Cutaneous horn may arise from a wide range of the epidermal lesions, which may be benign, premalignant or malignant

It is a clinical sign

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Differentials for cutaneous horn? (types of cutaneous horn)

Viral wart

Seborrhoeic keratosis

Actinic kerotosis

Bowen’s disease

Squmous cell carinoma

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What is curettage?

Curettage involves scraping the lining and removing uterine contents with a long,

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What is cryotherapy?

Cryotherapy is the use of extreme cold to freeze and remove abnormal tissue. Doctors use it to treat many skin conditions (including warts and skin tags) and some cancers, including prostate, cervical and liver cancer. This treatment is also called cryoablation

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What does this look like?

Tx?

Viral Wart

FInger like projections (filoforms)

If asymptomatic you can scrape it of under local anesthetic (curettage)

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What does this look like?

Is common or not?

Tx?

Seborrhoeic Keratosis

Very common

Tx- curettage

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Which is precancerous?

Actinic keratosis

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What does this look like?

Actinic Keratosis

In one of the main sun exposed sights.

Skin around is pink and scaly -sun damaged

Tx- cryotherapy

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WHat does this look like

Tx?

Bowen’s disease

bulk and elevated

there is red sclay plaque present

Tx- Excision biposy to rule out malignancy

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What does this look like

SCC-squamous cell carcinoma

You can see there is something underneath the horn

Tx- excision

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What does this look like

SCC-squamous cell carcinoma

You can see there is something underneath the horn

Tx- excision

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What is this?

SCC

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Differentials for red scaley skin (clinical sign)?

Inflammatory- Psoriasis, Discoid eczema

Neoplastic- Bowens Disease, Superficial basal cell carcinoma

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What could this indicate?

Tx?

Bowens disease

Tx- 5-flurouracil cream

warn the patient of an inflammatory reaction

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What does these look like?

Tx-

Superfical basal cell carinoma

Tx- curettage, excision, imiquimod cream if no to surgery,

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What is psoriasis?

Psoriasis is a skin condition that causes red, flaky, crusty patches of skin covered with silvery scales.

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What are some psoriasis creams that you can think of?

emollients (all patients should use this anyway)
Vitamin D analogue (dovonex/silkis)
Steroid
Tar
Dithranol

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Common places psoriasis can occur

These patches normally appear on your elbows, knees, scalp and lower back, but can appear anywhere on your body.

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What is the first line treatment for psoriasis?

Dovonex or silkis

Dovobet or Enstilar

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What does Dovonex come as?

gel/ointment

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What does enstilar come as?

Foam

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TRUE OR FALSE

Dovonex and silkis are steroid free

TRUE

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difference between eczema and psoriasis

Eczema usually look like rough, red patches, which can become crusty and infected. Psoriasis can cause similar red patches too, but it can also cause silvery, scaly patches and areas of thickened and severely inflamed skin. Eczema tends to appear in creases of skin around your joints.

psorisis is more sore where as eczema is itchy

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WHat would you recommend for a patient with psoriasis in the ear?

Study These Flashcards

Mild or moderate topical steroid

Recommendation for scalp psoriasis?

using tar shampoo Topical steroid if severe Sebco?

WHat is this? Tx?

guttate psoriasis Tx- Exorex

What if the patient has psoriasis in sensitive areas? What would you use?

Eumovate Trimovate

What is eczema?

Eczema is the **name for a group of skin conditions that cause dry, irritated skin**. Other types of eczema include: discoid eczema – a type of eczema that occurs in circular or oval patches on the skin. contact dermatitis – a type of eczema that occurs when the body comes into contact with a particular substance

What are the key topical treatment options for eczema?

Emmolients for dryness Soap substitute Anti inflammatory -steroid and calcineurin inhibitor

What features of emollients?

- consider the degree of greasiness - some good for soap substitute - no Limit to frequency for application - paraffin for very dry skin

Examples of topical steriods

less potent to very potent (top to bottom)

Eczema on the eyelids Tx?

Delicate site: midly potent Calcineurin inhibitor

Eczema in popliteal fossa?

Thin Skinned site: Mild moderate ptency Calcineurin inhibitor

Eczema in popliteal fossa?

Thin Skinned site: Mild moderate ptency Calcineurin inhibitor

Eczema on the forearm/wrist?

Lichenification requires higher ptency. Potent or even very potent

Eczema on the hand?

Very thick skin Very potent- dermovate

What are the differential diagnosis of a facial rash?

- Atopic eczema - Allergic contact dermatitis - Seborrhoeic dermatitis - Rosacea - Systemic lupus erythematosus - Angio-oedema - Superior vena cava obstruction

WHat does this look like