Small, Scaly Lesions
Fig. 5.1 Guttate psoriasis. Lesions in (A) developed after a sunburn (Koebner phenomenon). A, Courtesy, Ronald Rapini, MD. A, From Bolognia JL, Jorizzo JL, Schaffer JV. Dermatology, 3e. London: Saunders, 2012, with permission….
Fig. 5.1 Guttate psoriasis. Lesions in (A) developed after a sunburn (Koebner phenomenon). A, Courtesy, Ronald Rapini, MD. A, From Bolognia JL, Jorizzo JL, Schaffer JV. Dermatology, 3e. London: Saunders, 2012, with permission….
Fig. 8.1 Early epidermal necrosis. Staphylococcal scalded skin syndrome (A,B) and calciphylaxis (C,D; thrombosed dermal vessels above a deeper, calcified vessel). A, Courtesy, Yale Dermatology Residents’ Slide Collection. B, From Brinster NK, Liu…
Fig. 3.1 Pityriasis rubra pilaris. From Schwarzenberger K, Werchniak AE, Ko C. General Dermatology. London: Saunders, 2009. Fig. 3.2 Psoriasis, erythrodermic. Courtesy, Yale Dermatology Residents’ Slide Collection. Fig. 3.3 Congenital ichthyosiform erythroderma (autosomal recessive congenital…
Fig. 15.1 Neonatal cephalic pustulosis. Courtesy, Julie V Schaffer, MD. From Bolognia JL, Schaffer JV, Duncan KO, Ko CJ. Dermatology Essentials, 1e. Philadelphia: Saunders, 2014, with permission. Absent comedones Benign Cephalic Histiocytosis…
Fig. 12.1 Typical sites of involvement of sclerosing disorders. Eosinophilic fasciitis and limited cutaneous systemic sclerosis both involve the extremities, but the deeper involvement of the former is evidenced by rippling of…
Fig. 9.1 Pathogenesis of acne. From Bolognia JL, Schaffer JV, Duncan KO, Ko CJ. Dermatology Essentials, 1e. Philadelphia: Saunders, 2014, with permission. Fig. 9.2 Acne. A Open and closed comedones and several inflammatory papules….
Fig. 11.1 Sweet syndrome. A,B, Courtesy, Yale Dermatology Residents’ Slide Collection. Histopathology: Dense dermal infiltrate of neutrophils, sometimes with papillary dermal edema (Fig. 11.1C) Pyoderma Gangrenosum (Fig. 11.2) Any site, but commonly…
Fig. 6.1 Distribution patterns of atopic dermatitis in infancy. Courtesy, Julie V Schaffer, MD. From Bolognia JL, Schaffer JV, Duncan KO, Ko CJ. Dermatology Essentials, 1e. Philadelphia: Saunders, 2014, with permission. Fig….
Fig. 10.1 Lichen nitidus. A, Courtesy, Yale Dermatology Residents’ Slide Collection. Histopathology: Epidermal rete demarcating a lymphohistiocytic infiltrate in the superficial dermis Histiocytoses There are classic presentations of different histiocytoses (Fig. 10.2,…
Fig. 14.1 Microscopy of selected localized blistering conditions. *Can also be subepidermal. Disorders With a Characteristic Morphology Bullous impetigo (Fig. 14.2) – somewhat tense vesicles/bullae or superficial erosions with collarettes of scale…