Dermoscopy Flashcards
Non-pigmented AK
Strawberry pattern is present
- erythematous pseudonetwork
- prominent yellowish hair follicles surrounded by a white halo (keratin plug)
- grey or brown dots and globules
- Surface scale.
Non-pigmented AK
Strawberry pattern is present
- erythematous pseudonetwork
- prominent yellowish hair follicles surrounded by a white halo (keratin plug)
- grey or brown dots and globules
- Surface scale.
Non-pigmented AK
Strawberry pattern is present
- erythematous pseudonetwork
- prominent yellowish hair follicles surrounded by a white halo (keratin plug)
- grey or brown dots and globules
- Surface scale.
Pigmented AK
Hyperpigmented follicular openings
Brown structureless areas
Annular-granular structures.
Pigmented AK
Hyperpigmented follicular openings
Brown structureless areas
Annular-granular structures.
Pigmented AK
Hyperpigmented follicular openings
Brown structureless areas
Annular-granular structures.
SCC
The hallmark of SCC is keratinisation
- White circles
- White structureless areas
- Looped (irregular) vessels, blood spots common
- Central keratin
- Pink or red background in poorly differentiated or rapidly growing tumours.
+/- Ulceration
SCC
The hallmark of SCC is keratinisation
- White circles
- White structureless areas
- Looped (irregular) vessels, blood spots common
- Central keratin
- Pink or red background in poorly differentiated or rapidly growing tumours.
+/- Ulceration
SCC
The hallmark of SCC is keratinisation
- White circles
- White structureless areas
- Looped (irregular) vessels, blood spots common
- Central keratin
- Pink or red background in poorly differentiated or rapidly growing tumours.
+/- Ulceration
Pigemnted BCC
The dermoscopic features of pigmented basal cell carcinoma include:
- Absence of pigment network
- Linear and arborising (branch-like) telangiectasia
- Structureless or leaf-like areas on the periphery of the lesion
- Large blue-grey ovoid nests or blotches
- Multiple blue-grey globules
- Specks of brown and grey pigment
- Spoke wheel areas (radial projections from a well circumscribed dark central hub)
- Focal ulceration
Pigemnted BCC
The dermoscopic features of pigmented basal cell carcinoma include:
- Absence of pigment network
- Linear and arborising (branch-like) telangiectasia
- Structureless or leaf-like areas on the periphery of the lesion
- Large blue-grey ovoid nests or blotches
- Multiple blue-grey globules
- Specks of brown and grey pigment
- Spoke wheel areas (radial projections from a well circumscribed dark central hub)
- Focal ulceration
Pigemnted BCC
The dermoscopic features of pigmented basal cell carcinoma include:
- Absence of pigment network
- Linear and arborising (branch-like) telangiectasia
- Structureless or leaf-like areas on the periphery of the lesion
- Large blue-grey ovoid nests or blotches
- Multiple blue-grey globules
- Specks of brown and grey pigment
- Spoke wheel areas (radial projections from a well circumscribed dark central hub)
- Focal ulceration
Non-Pigemnted BCC
Much more common than pigmented basal cell carcinoma.
- They contain flecks of grey colour
- typical bluish-pink colour,
- Asymmetrical arborising vessels
- focal ulceration
- Slight scaling and white areas of regression may also be present.
- Chrystalline structures, i.e. white shiny lines, strands and larger irregular-shaped white areas, are common in all histological types of basal cell carcinoma
Non-Pigemnted BCC
Much more common than pigmented basal cell carcinoma.
- They contain flecks of grey colour
- typical bluish-pink colour,
- Asymmetrical arborising vessels
- focal ulceration
- Slight scaling and white areas of regression may also be present.
- Chrystalline structures, i.e. white shiny lines, strands and larger irregular-shaped white areas, are common in all histological types of basal cell carcinoma
Non-Pigemnted BCC
Much more common than pigmented basal cell carcinoma.
- They contain flecks of grey colour
- typical bluish-pink colour,
- Asymmetrical arborising vessels
- focal ulceration
- Slight scaling and white areas of regression may also be present.
- Chrystalline structures, i.e. white shiny lines, strands and larger irregular-shaped white areas, are common in all histological types of basal cell carcinoma
Superficial Melenoma
- Blue-white veil
- Multiple brown dots
- Pseudopods
- Radial streaming
- Scar-like depigmentation
- Peripheral black dots/globules
- Multiple (5-6) colours, especially red and blue
- Broad network
- Focal sharply cut-off border
- Negative network
- Irregular vascularity
Superficial Melenoma
- Blue-white veil
- Multiple brown dots
- Pseudopods
- Radial streaming
- Scar-like depigmentation
- Peripheral black dots/globules
- Multiple (5-6) colours, especially red and blue
- Broad network
- Focal sharply cut-off border
- Negative network
- Irregular vascularity
Superficial Melenoma
- Blue-white veil
- Multiple brown dots
- Pseudopods
- Radial streaming
- Scar-like depigmentation
- Peripheral black dots/globules
- Multiple (5-6) colours, especially red and blue
- Broad network
- Focal sharply cut-off border
- Negative network
- Irregular vascularity
Nodular Melenoma
Isolated globules
Blue-grey veil
White streaks
Irregular linear or dotted vessels
Can be fairly regular
Nodular Melenoma
Isolated globules
Blue-grey veil
White streaks
Irregular linear or dotted vessels
Can be fairly regular
Nodular Melenoma
Isolated globules
Blue-grey veil
White streaks
Irregular linear or dotted vessels
Can be fairly regular
Seborrhoeic keratosis
Milia-like cysts – there are two types:
- Tiny white starry
- Larger yellowish cloudy
Irregular crypts
Fissures/ridges
Blue-grey globules
Light brown fingerprint-like parallel structures
‘Fat fingers’ (the gyri of a cerebriform surface)
Seborrhoeic keratosis
Milia-like cysts – there are two types:
- Tiny white starry
- Larger yellowish cloudy
Irregular crypts
Fissures/ridges
Blue-grey globules
Light brown fingerprint-like parallel structures
‘Fat fingers’ (the gyri of a cerebriform surface)
Seborrhoeic keratosis
Milia-like cysts – there are two types:
- Tiny white starry
- Larger yellowish cloudy
Irregular crypts
Fissures/ridges
Blue-grey globules
Light brown fingerprint-like parallel structures
‘Fat fingers’ (the gyri of a cerebriform surface)
Benign Nevus
Halo naevi fade away because of an immune reaction.
Clinically the mole is surrounded by hypopigmentation or achromia.
Dermoscopy shows symmetrical peripheral hypopigmentation without scarring.
Benign Nevus
Well-organised structure
Tending to be symmetrical and with uniform structure.
May be flat, flat peripherally and raised centrally, or entirely elevated.
- Cobblestone pattern (dermal naevi)
- Aggregated globules
- Pigment network (reticular pattern)
- Homogeneous/amorphous (structureless) pigmentation
Benign Nevus
Well-organised structure
Tending to be symmetrical and with uniform structure.
May be flat, flat peripherally and raised centrally, or entirely elevated.
- Cobblestone pattern (dermal naevi)
- Aggregated globules
- Pigment network (reticular pattern)
- Homogeneous/amorphous (structureless) pigmentation
Benign Nevus
Well-organised structure
Tending to be symmetrical and with uniform structure.
May be flat, flat peripherally and raised centrally, or entirely elevated.
- Cobblestone pattern (dermal naevi)
- Aggregated globules
- Pigment network (reticular pattern)
- Homogeneous/amorphous (structureless) pigmentation
