Spot Diagnosis Flashcards
Solar lentigo:
A flat, well-circumscribed patch. Colour varies from skin-coloured, tan to dark brown or black, and size varies from a few millimetres to several centimetres in diameter. Solar lentigines are found on sun-exposed sites, particularly the face or hands.
Ink Spot Lentigo (aka Reticulated Lentigo).
Fewer in number compared to Solar Lentigines
Follows sunburn in very fair skinned individuals
(NB: Lentigo is a pigmented flat or sightly raised lesion with a clearly defined edge. Plural-Lentigines)
Lentigo Simplex
The most common form of Lentigo and may be present at birth or develop in early childhood.
Not associated with sun exposure
Round/Oval shaped macule 3-15mm diameter
Jagged or smooth margin
Symptomless, i.e. not painful or itchy
Distinguished from freckles by their darker colour and scattered distribution. Do not darken or increase in number on sun exposure, as do freckles.
Junctional Naevus
Has groups or nests of naevus cells at the junction of the epidermis and the dermis. A flat mole.
Compound naevus
Has nests of naevus cells at the epidermal-dermal junction as well as within the dermis. A central raised area surrounded by a flat patch.
Atypical melanocytic naevus
A mole with unusual features.
Often shortened to “atypical naevus”.
Can be defined as a mole with at least 3 of the following features.
Size > 5 mm diameter
Ill-defined or blurred borders
Irregular margin
Varying shades of colour (mostly pink, tan, brown, black)
Flat and bumpy components.
Lichenoid Keratosis
Inflammatory reaction arising in a regressing existing solar lentigo or seborrhoeic keratosis.
AKA benign lichenoid keratosis, solitary lichen planus, lichen planus-like keratosis and involuting lichenoid plaque. They are one of the causes of atypical solar lentigo.
Dermoscopy-Uniform clusters of grey dots and, depending on the stage of the lesion, may show signs of an original pre-existing lentigo or seborrhoeic keratosis.
Atrophie Blanche
Pattern often seen in scars on the lower leg
Dysplastic Naevus
Melanoma
Melanoma
Melanoma
BCC
Arrows indicate Dots
Benign Naevus
Plantar Naevus
Cherry Angioma
Solar Lentigo
Compound Naevus
Cellular Naevus
Seborrhoeic Keratosis
Seborrhoeic Keratosis
Demonstrates asymmetry of colour or structure in one or two axes
Melanoma in Situ
Demonstrates asymmetry of colour or structure in one or two axes
Congenital Naevus
Demonstrates asymmetry of colour or structure in one or two axes
Invasive Melanoma
Demonstrates asymmetry of colour or structure in one or two axes
BCC
Demonstrates asymmetry of colour or structure in one or two axes
Lentigo Simplex
Demonstrates asymmetry of colour or structure in one or two axes
Lentigo simplex is the most common form of lentigo. A single lesion or multiple lesions (lentigines) may be present at birth or develop in early childhood. Is not induced by sun exposure, not associated with any medical diseases or conditions. It is also referred to as simple lentigo and juvenile lentigo.
Plantar Naevus
Name the picture. Name the dominant dermatological feature.
Atypical naevus due to the presence of streaming
Name the picture and why it is named this.
Atypical naevi due to the asymmetry and presence of 3 different colours.
Name the picture and why it is named this.
Atypical naevus due to asymmetry and multifocal pigment distribution.
Name this clinical image
Spitz Naevus
Name this picture
Spitz Naevus
Name this lesion and it’s structure
Seborrhoeic Keratosis
Exophytic (arising from outer surface) Papillary Structure
Name this lesion and the type of blood vessels
Seborrhoeic Keratosis
Blood vessels can be prominent in some seborrhoeic keratoses, tending to arise as tiny hairpin shaped capillaries surrounded by a halo within a lobule.
Name this lesion and the two types of cysts which can be observed
Seborrhoeic Keratosis
Starry and Cloudy Milia like cysts
Name this lesion and the prominent dermatoscopic feature
Seborrhoeic Keratosis with Brown dots
Name this lesion and comment on the structures
Seborrhoeic Keratosis
Irregular Structures
Name this lesion and comment on a clinical feature
Seborrhoeic Keratosis, irritated lesion
Name this lesion and a term used to describe it’s appearance
Seborrhoeic Keratosis, Tanning cream in krypts
Name the lesion and comment on a structural element
Seborrhoeic Keratosis
Globule like structures
Name this lesion and decsribe a prominent feature
Seborrhoeic Keratosis with Milia like cysts
Name this lesion and comment on the pattern
Seborrhoeic Keratosis with Cerebriform pattern
Name this lesion and comment on the structure
Seborrhoeic Keratosis, with indistinct structure
Name this lesion and comment on a dermatoscopic feature
Seborrhoeic Keratosis with ‘fat fingers’
Name this lesion and the characteristic dermatologic structure
Seborrhoeic Keratosis with finger-print like structures
Name this lesion and a clinical feature
Seborrhoeic Keratosis with multiple colours
Name this lesion and a clinical feature
Seborrhoeic Keratosis with multiple colours
Name this lesion and a dermatoscopic feature
Seborrhoeic Keratosis with Blue-grey Globules
Name this lesion and a prominent dermatoscopic feature
Seborrhoeic Keratosis
Irregular Crypts (recesses or tubes extending down from the skin surface)
Name this lesion and the prominent feature
Seborrhoeic Keratosis with Horny cysts
Name this leasion and a prominent dermatoscopic feature
Seborrhoeic Keratosis
Fissures/Ridges
Name this lesion and comment on the colour
Seborrhoeic Keratosis
Black Seb K
Name the lesion and comment on it’s colour
Seborrhoeic Keratosis
Brown lesion
Name this lesion and comment on it’s colour
Seborrhoeic Keratosis
Skin-coloured lesion
Name this lesion and comment on it’s colour
Seborrhoeic Keratosis
Pink Lesion
Name this lesion and comment on it’s colour
Seborrhoeic Keratosis
White lesion
Name this lesion and a dermatological feature
Pigmented BCC with focal ulceration
Name this lesion and a dermatological feature
Non-Pigmented BCC
Bluish Hue, Scale and Ulceration
Name this lesion and a dermatological feature
Non-Pigmented BCC
Superficial BCC
Name this lesion and a dermatological feature
Non-Pigmented BCC
Cystic BCC, Polarised View showing crystalline structures
Name this lesion and a dermatological feature
Non-Pigmented BCC
Cystic BCC, Non-Polarised View
Name this lesion and a dermatological feature
Non-Pigmented BCC
White Nodule, Telangiectasia
Name this lesion and a dermatological feature
Non-Pigmented BCC
Tiny Ulcers
Name this lesion and a dermatological feature
Non-Pigmented BCC
Superficial BCC
Name this lesion and a dermatological feature
Non-Pigmented BCC
Prominent Vasculature
Name this lesion and a dermatological feature
Non-Pigmented BCC
Vascular BCC
Name this lesion and a dermatological feature
Non-Pigmented BCC
Crusting, Telangiectasia
Name this lesion and a dermatological feature
Non-Pigmented BCC
Milia Formation
Name this lesion and a dermatological feature
Non-Pigmented BCC
Subtle blue colour
Name this lesion and a dermatological feature
Pigmented BCC
Large Nodule
Name this lesion and a dermatological feature
Pigmented BCC
Multicoloured lesion
Name this lesion and a dermatological feature
Pigmented BCC
Deeply pigmented border
Name this lesion and a dermatological feature
Pigmented BCC
Flecks of Pigment
Name this lesion and a dermatological feature
Pigmented BCC
Flecks of Pigment
Name this lesion and a dermatological feature
Pigmented BCC
Arborising Telangiectasia
Name this lesion and a dermatological feature
Pigmented BCC
Flecks of pigment
Name this lesion and a dermatological feature
Pigmented BCC
Spoke wheel pigmentation
Name this lesion and a dermatological feature
Pigmented BCC
Ulceration
Name this lesion and a dermatological feature
Pigmented BCC
Blue Ovoid Nests
Name this lesion and a dermatological feature
Pigmented BCC
Arborising blood vessels
Name this skin lesion and where it is most likely to be on the body based on it’s distinguishing features.
Actinic keratosis.
Likely to be on the body due to it’s prominent keratin (white or yellow scale).
Name this skin lesion and where it is most likely to be on the body based on it’s distinguishing features.
Actinic keratosis.
Likely to be on the face due to it’s strawberry pattern.
NB: Due to it’s pigmentation, it could be confused for a Lentigo Maligna
Name this skin lesion and where it is most likely to be on the body based on it’s distinguishing features.
Actinic keratosis.
Likely to be on the face due to it’s strawberry pattern.
NB: Due to it’s pigmentation, it could be confused for a Lentigo Maligna
Name this skin lesion and where it is most likely to be on the body based on it’s distinguishing features.
Actinic keratosis.
Likely to be on the face due to it’s strawberry pattern.
Name this lesion and describe the vessel type indicated with the purple arrow.
SCC in situ/Bowen Disease/Intraepidermal Carcinoma.
Purple arrow indicates clusters of glomerular vessels (coiled vessels)
Name this lesion and describe the vessel type indicated with the purple arrow.
SCC in situ/Bowen Disease/Intraepidermal Carcinoma.
Purple arrow indicates clusters of glomerular vessels (coiled vessels)
Name this lesion and describe the vessel type indicated with the purple arrow.
SCC in situ/Bowen Disease/Intraepidermal Carcinoma.
Purple arrow indicates clusters of glomerular vessels (coiled vessels)
Name this lesion and describe the vessel type indicated with the purple arrow.
Deeply pigmented SCC in situ/Bowen Disease/Intraepidermal Carcinoma.
Purple arrow indicates clusters of glomerular vessels (coiled vessels)
Name this lesion
Invasive SCC
Name this lesion
Invasive SCC
Name this lesion
Invasive SCC
Name this lesion
Invasive SCC
Name this vascular lesion
Venous Lake on the Lip
Name this vascular lesion
Cherry Angioma
Name this vascular lesion
Haemorrhagic Lymphatic Malformation
Name this vascular lesion
Haemorrhagic Lymphatic Malformation
Name this vascular lesion
Cherry Angioma
Name this vascular lesion
Cherry Angioma
Name this vascular lesion
Angioma on the lip
Name this vascular lesion
Reactive Haemangioma
Name this vascular lesion
Cherry Angioma
Name this vascular lesion
Cherry Angioma
Name this lesion
Thrombosed Haemangioma
Name this lesion
Haemorrhage within a Seborrhoic Keratosis
Name this lesion
Subungual haemorrhage
Name this lesion
Senile Purpura
Name this lesion
Talon Noir (macro)
Name this lesion
Talon Noir (dermoscopy)
Name this lesion
Talon Noir (dermoscopy)
What lesion is indicated in this clinical sign
Dermatofibroma
Name this picture
Rainbow pattern dermoscopy of Dermatofibroma
Name this picture
Dermatofibroma
Name this picture
Dermatofibroma
Name this picture
Dermatofibroma
Name this picture
Dermatofibroma
Name this lesion
Neurofibroma
Name this lesion
Neurofibroma
Name this lesion
Neurofibroma
Name this lesion
Neurofibroma
Name this lesion and what the yellow arrows are indicating
Lichenoid Keratosis.
Name this lesion and what the yellow arrows are indicating
Lichenoid Keratosis.
Name this lesion and what the yellow arrows are indicating
Lichenoid Keratosis.
Name this lesion and what the yellow arrows are indicating
Lichenoid Keratosis. Yellow arrows show grey dots.
Name this lesion and a prominent feature within it
Disseminated superficial Porokeratosis
Name this lesion and a prominent feature within it
Follicular plugging in Porokeratosis
Name this lesion
Porokeratosis
Name this lesion
Porokeratosis of Mibelli
Name this skin condition
Sebaceous Hyperplasia
Name this skin condition
Sebaceous Hyperplasia
Name this skin condition
Sebaceous Hyperplasia
Name this skin condition
Sebaceous Hyperplasia
Name this lesion
Callus
Name this lesion
Corn
Name this lesion
Plantar wart
Name this lesion
Common wart
Name this lesion
Plane wart
Name this lesion
Common wart
Name this lesion
Epidermal Naevus
Name this lesion
Epidermal Naevus
Name this lesion
Epidermal Naevus
Name this skin occurence
Accessory Nipple
Describe this lesion on breast tissue
Normal areola and naevus
Describe this lesion on breast tissue
Normal areola and naevus
Name this skin condition
Giant Comedo
Name this skin condition
Xanthelasma (no skin opening)
Name this skin lesion
Large epidermal cyst
Name this skin lesion
Large epidermal cyst
Name this skin lesion
Clear Cell Acanthoma
Name this skin lesion
Clear Cell Acanthoma
Name this skin lesion
Clear Cell Acanthoma
Name this skin lesion
Clear Cell Acanthoma
Name this skin condition
Trichoepithelioma/Trichoadenoma
Aka Benign hair follicle tumour.
Name this skin condition
Trichoepithelioma/Trichoadenoma
Aka Benign hair follicle tumour.
Name this skin condition
Trichoepithelioma/Trichoadenoma
Aka Benign hair follicle tumour.
Name this red scaly plaque
Lichen Planus (dermoscopy)
Name this red scaly plaque
Lichen Planus (macro)
Name this red scaly plaque
Psoriasis (dermoscopy)
Name this red scaly plaque
Psoriasis (macro)
Name this skin condition
Cutaneous Larvae Migrans
Name this skin condition
Scabies Burrow
Name this skin condition
Scabies Burrow
Name this lesion and one main characteristic
Cerebriform pattern
Name this lesion and one main characteristic
Finger-like structures
Name this lesion and one main characteristic
Comedo-like openings
Name this lesion and one main characteristic
Milia-like cysts
Name this lesion and it’s main characteristic
Pigmented BCC with Bizzare Structures
Name this lesion and it’s main characteristic
Pigmented BCC with Spoke wheel areas
Name this lesion and it’s main characteristic
Pigmented BCC with Large blue/grey ovoid nests
Name this lesion and it’s main characteristic
Pigmented BCC with Ulceration (can also be present in Melanomas)
Name this lesion and it’s main characteristic
Pigmented BCC with Multiple blue/grey globules
Name this lesion and it’s main characteristic
Pigmented BCC with Multiple blue/grey/brown globules
Name this lesion and it’s main characteristic
Pigmented BCC with Leaf-like structures
Name this lesion and it’s main characteristic
BCC with arborising vessels
