Fungal Skin Infections (Dermatophyte Infections, Candidiasis, and Tinea Versicolor), Pediatric

Candidiasis. The oral cavity of a patient with AIDS is covered by a white, curdlike exudate containing numerous fungal organisms.

Candidiasis. A periodic acid-Schiff (PAS) stain shows numerous septate hyphae and yeast forms.

Candidiasis The thick white coat on this tongue is due to Candida infection. A raw red surface is left where the coat was scraped off. This infection may also cause redness of the tongue without the white coat. AIDS, among other factors, predisposes to this condition.

Tinea Capitis Scaling, crusting, and hair loss are seen in the scalp, along with a painful plaque (kerion) and occipital lymph node (arrow).

tinea versicolor - hypopigmented (in this case) irregular macules on upper back

tinea versicolor - salmon-colored (in this case) irregular macules on chest. Also involved neck and upper back

tinea manuum

Tinea Versicolor More common than vitiligo is this superficial fungus infection of the skin. It causes hypopigmented, slightly scaly macules on the trunk, neck, and upper arms. They are easier to see in darker skin and may become more obvious after tanning. In lighter skin, the macules may look reddish or tan instead of pale. The macules may be much more numerous than in this example.

FIG. 6.20. Tinea capitis. Tinea capitis may cause a variety of lesions (A, B), of which a kerion (C-E) is the most dramatic. As pictured here, kerions are elevated, boggy, exudative, and frequently covered by matted hair.

FIG. 6.20. Tinea capitis. Tinea capitis may cause a variety of lesions (A, B), of which a kerion (C-E) is the most dramatic. As pictured here, kerions are elevated, boggy, exudative, and frequently covered by matted hair.

FIG. 6.20. Tinea capitis. Tinea capitis may cause a variety of lesions (A, B), of which a kerion (C-E) is the most dramatic. As pictured here, kerions are elevated, boggy, exudative, and frequently covered by matted hair.

FIG. 6.20. Tinea capitis. Tinea capitis may cause a variety of lesions (A, B), of which a kerion (C-E) is the most dramatic. As pictured here, kerions are elevated, boggy, exudative, and frequently covered by matted hair.

FIG. 6.20. Tinea capitis. Tinea capitis may cause a variety of lesions (A, B), of which a kerion (C-E) is the most dramatic. As pictured here, kerions are elevated, boggy, exudative, and frequently covered by matted hair.

FIG. 6.21. A, B: Tinea versicolor. Tinea versicolor occurs most often in the summer, as tanning of the skin accentuates the hypopigmented lesions that are characteristic of this condition. As in this adolescent, the eruption typically involves the trunk.

Figure 136.1. (See also Color Figure 136.1.) Tinea capitis. C <bold>A:</bold> Multiple scaly alopecic plaques. <bold>B:</bold> Black-dot tinea capitis. <bold>C:</bold> Kerion with visibly enlarged postauricular lymph node.

<bold>Figure 6-1</bold> Tinea capitis.

FIGURE 2.26 Tinea corporis (ringworm). Note the annular appearance, central clearing, and "active" scaly border that demonstrate hyphae on potassium hydroxide examination.

FIGURE 3.9 Tinea corporis. The lesion is annular (clear in the center).

FIG. 6.19. Tinea corporis. A, B: Tinea is one of several conditions (granuloma annulare, nummular eczema) that produces circular lesions. In tinea, the margin of the lesion contains microvesicles, which are best visualized by peering through the lens of a lighted otoscope, and is raised. C: The flat central area often shows fine scaling.

<bold>FIGURE 54-5</bold> <bold>Life cycle of intestinal tapeworms <i>Taenia solium</i> (pork tapeworm) and <i>Taenia saginata</i> (beef tapeworm).</bold> Humans acquire intestinal tapeworm infections by ingesting the tissue stage of the parasite (cysticercus) in inadequately cooked meat (1). The parasite then hatches in the intestine (2) and matures to an intestinal tapeworm (3). The pork tapeworm (outside diagram) has a crown of spines on its head and ...

Figure 288.3. Gravid proglottid segments from <italic>T. saginata</bold> (<bold>A</bold>) and <italic>T. solium</bold> (<bold>B</bold>). Cleared in glycerol and mounted on a slide. <italic>Ub</bold>, Uterine branches. (<bold>A</bold> and <bold>B</bold> courtesy of Sylvia Paz Diaz Camacho.) <bold>C:</bold> Scanning electron micrograph of <italic>T. solium</bold> proglottid, showing genital atrium <italic>(a)</bold> and eggs <italic>(e)</bold> on surface (<italic>arrows</bold>).

Tinea capitis - erroneously treated with topical antifungal without improvement

Tinea capitis - a scaling dermatitis with patchy alopecia in a young African American girl

Tinea corporis erroneously treated with steroid. Absent scale. One appearance of 'tinea incognito', more often papular.

Tinea corporis - itching, expanding lesion present for 2 weeks since trip to Virgin Islands

Large area of tinea corporis on the buttock. Active edges, slight central clearing.

Tinea corporis. Note scale and central clearing.

Tinea corporis -matching lesions on abdomen and arm of child. Note fine scale.

Tinea manuum - present for months on only one hand

Tinea pedis - extremely pruritic with vesiculo-bullous pattern

tinea capitis infection in a child; possible staph suprainfection