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Chapter 21. Dermatophytosis

New! Additional Images

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Fig. 21-40

Large somewhat annular plaques with scale-crust at their margin indicate likelihood of immunosuppression. A pink papule at the jaw line is an early lesion. Pigmented papules are Miescher’s nevi.


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Fig. 21-41

All of the lesions shown here, namely, papules, nodules, erosions, and ulcers, are secondary to suppurative infundibulitis induced by a dermatophyte, i.e., “sycosis barbae.”


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Fig. 21-42 A

Papules have become confluent to form ill-defined plaques whose border is scalloped.


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Fig. 21-42 B

Papules have become confluent to form ill-defined plaques whose border is scalloped.


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Fig. 21-43

The annular plaque is covered by scale-crusts. As the lesion advanced outward, a “zone of clearing” was left in the center.


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Fig. 21-44

The remarkable figurate pattern came into being by virtue of the peculiar growth of the fungus responsible for it.


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Fig. 21-45

Nummular scaly plaque. Note that the border of the lesion is slightly scalloped.


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Fig. 21-46

The figurate pattern produced by a fungus is accentuated by scale on the inner aspect of arc-like ridges.


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Fig. 21-47

The bizarre-shaped plaque is made up largely of numerous scaly, crusted papules. Note “zones of clearing” in some loci.


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Fig. 21-48

The arciform plaques have a raised border. Scattered hemorrhagic crusts are secondary to excoriation. Signs of onychomycosis also are apparent.


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Fig. 21-49

This scaly palm, whose flexural folds are accentuated by the disease, is accompanied by signs ofonychomycosis.


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Fig. 21-50

Tinea manum typified by diffuse redness and by accentuation of scaliness in flexural creases. Collarettes of scale are a sure sign of loss of a cap of parakeratosis above a focus of spongiosis.


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Fig. 21-51

The constellation of destruction of the distal part of the nail plate, onycholysis, and subungual keratosis are evidences of onychomycosis.


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Fig. 21-52

Papules and plaques, some with accentuation of skin markings (lichen simplex chronicus), are those of dermatophytosis, the clue being papules in arcuate and serpiginous array and infundibulocentricity (Majocchi’s granuloma).


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Fig. 21-53

The moccasin distribution of a plaque covered by ichthy osiform scale is one of many manifestations of dermatophytosis. The fissure, a crack in the hyperkeratotic surface, extends to the papillary dermis.


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Fig. 21-54

The serrated appearance of the distal end of the nail and the subungual keratosis are evidences of onychomycosis.


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Fig. 21-55 A

This nummular patch of alopecia covered by furfuraceous scale resulted from an infection of stratum corneum and hair shafts by a fungus.


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Fig. 21-55 B

This nummular patch of alopecia covered by furfuraceous scale resulted from an infection of stratum corneum and hair shafts by a fungus.


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Fig. 21-56

Nummular scaly patches of alopecia are an expression of an infection by a fungus.


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Fig. 21-57 A

Annular, arcuate, and polycyclic scaly lesions are typical of one manifestation of fungal infection. A child such as this one with widespread lesions could be immunosuppressed, but need not be.


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Fig. 21-57 B

Annular, arcuate, and polycyclic scaly lesions are typical of one manifestation of fungal infection. A child such as this one with widespread lesions could be immunosuppressed, but need not be.


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Fig. 21-58

Kerion with secondary cellulitis, the former being an exuberant response to dermatophytosis and the latter a complication by gram positive bacteria.


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Fig. 21-59

Majocchi’s granuloma, a suppurative infundibulitis consequent to infection of hair shaft and inner sheath by dermatophytes.