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35 Cards in this Set
- Front
- Back
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Cutaneous T-cell lymphoma - non-nodal
Typically presents with red, scaly patches or thickened plaques of skin that often mimic eczema or chronic dermatitis and are painful |
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Mucinous carcinoma
Blue areas are pockets of mucin |
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LAYERS (not stratums)
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1 = horny layer
2 = granular layer 3 = squamous layer 4 = basal layer |
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1 = stratum corneum
2 = stratum lucidem 3 = stratum granulosum 4 = stratum spinosum 5 = stratum basale 6 = DEJ 7 = papillary dermis 8 = reticular dermis |
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Where is this skin/ what type?
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Trunkal skin (on trunk/ more proximal extremities)
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Where is this skin/ what type?
How is it different from other skin? |
Acral skin (palms and soles - specialized areas without hair)
Has a thicker corneum and a well defined graular layer |
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What is this and when/ why does it arise?
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Mongolian spot
Children of mixed race at birth because the pigment higher in the skin is brown/black but in deeper areas it is bluer and in newborns the pigment is still migrating superficially |
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Cafe au lait macules
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Minocycline hyperpigmentation
(from fillings) |
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Hemangiomas - this is a patch
Sometimes also as plaques Congenital |
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Nevus flamus aka port wine stain
Congenital |
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Allopecia areata - autoimmune
Considered a patch even though there is no visible pathology |
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Also, what is a common area to see this?
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Lichen planus, common on extensor surfaces (wrist here)
Note: pruritic, violaceous, flat-topped papules |
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Lichen planus on oral mucosa
Note: pruritic and scaley, flat topped |
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Psoriasis
Note: scaley plaques, common on joints - well demarcated and erythematous |
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Molluscum contagiosum
Note: bowl-shaped lesion with central depression (full of keratin and viral particles) |
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Granuloma annulare
Note: plaques and papules both present, filled with granulomatous deposits |
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Also, how does this arise?
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Lichen simplex chronicus
Circular phenomenon from rubbing (like a callous) |
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Name both and describe
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Top: congenital nevus, a plaque (mole)
Bottom: vitiligo, a patch (autoimmune attack on melanocytes) |
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Name and characterize
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Spider angioma - vascular lesion
Radiating macule (non-palpable) |
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Spider bite
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Name and cause
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Keloid - tumor like proliferation of raised scars caused by excessive synthesis of type III collagen
Common in blacks |
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Rheumatoid nodules
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Basal cell carcinoma
Note: raised nodule (can also be papule) with a central crater |
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Cutaneous B-cell lymphoma - nodal
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Hand, foot and mouth disease
Note: fragile blisters high in the dermis |
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Name and associated with what?
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Myxoid cyst
Associated with osteoarthritis Filled with gelatinous substance |
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Dishydrotic Eczema - usually affects palms and sides of digits
Intensely puritic |
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Bullous pemphigoid
Note: subepidermal vesicles |
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Pemphigus vulgaris
Note: superficial blisters rupture easily - why you only see erosion here |
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Pemphigus vulgaris
Note: intraepithelial (above basal layer) vesicles, superficial and easily ruptured |
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Tinea capitus
Note: circular or ring shaped patches that are highly inflammatory with allopecia, erosion, ulceration and scarring |
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Tinea capitus (less progressed)
Note: black dot is present where hair has broken off |
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Test and indication
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Positive Wood's lamp test - indicates causative organism of the tinea capitis as Microsporum (not trichophyton)
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Test and indication - associated diseases
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Tzanck prep showing giant multinucleated cells
Indicative of herpes virus - herpes zoster, herpes simplex, varicella, pemphigus vulgaris, cytomegalovirus |
