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Figure 04.1
Sparing underneath the concha of the ear in chronic actinic dermatitis – sometimes called Wilkinson's triangle after the late Dr D. S. Wilkinson, one ...
Figure 04.5
Grouping in a linear distribution ascending the distal limb – so‐called sporotrichoid distribution of a Mycobacterium marinum infection.
Figure 04.9
Discoid lesions: (a) discoid eczema; (b) discoid hyperpigmentation and unusual haemorrhagic lesions due to the practice of cupping.
Figure 04.13
Serpiginous lesions on the foot in cutaneous larva migrans.
Figure 04.17
Pinching and stretching of the skin can elicit diagnostic features in some lesions: (a) pinching a dermatofibroma between the fingers causes it to dip...
Figure 04.21
A positive prick test to latex.
Figure 04.2
Sparing of the head and neck by garments in quinine‐induced photo‐lichenoid eruption.
Figure 04.6
Examples of annular lesions: (a) granuloma annulare; (b) porokeratosis; and (c) tinea corporis.
Figure 04.10
A collarette scale surrounding an eccrine poroma.
Figure 04.14
Reticulate lesions: (a) reticulate lichen planus on the lower lip – note also florid lichen planus on the fingers; and (b) erythema ab igne from resti...
Figure 04.18
Wood's light illumination of erythrasma of the groins – the fluorescence is coral pink.
Figure 04.3
Characteristic grouping of lesions: (a) blisters in a ring like a ‘string of pearls’ in linear immunoglobulin A (IgA) bullous dermatosis; (b) grouped ...
Figure 04.7
Examples of arcuate and polycyclic lesions: (a) erythema annulare centrifugum; (b) elastosis perforans serpiginosum – note the abnormal elastic tissue...
Figure 04.11
Colour and its variability can be diagnostically invaluable: (a) the yellow colour of xanthomas; (b) black, blue, grey and white in a malignant melano...
Figure 04.15
Digitate lesions in chronic superficial scaly dermatosis.
Figure 04.19
A reflectance confocal microscope.
Figure 04.4
Examples of linear lesions: (a) ‘strimmer’ phytophotodermatosis; (b) linear epidermal naevus; (c) growth striae; and (d) lichen striatus.
Figure 04.8
Livedoid lesions: (a) diffuse dermal angiomatosis of the breast; (b) broken livedo reticularis in cutaneous polyarteritis nodosum.
Figure 04.12
Target lesions in erythema multiforme.
Figure 04.16
Blaschkoid lesions in incontinentia pigmenti.
Figure 04.20
Basal cell carcinoma. A comparison of standard H&E histology and reflectance confocal microscopical appearances.