Fig. 21.1 Common sites of cysts (A), and developmental anomalies of the face and neck (B). B, From Bolognia JL, Jorizzo JL, Schaffer JV. Dermatology, 3e. London: Saunders, 2012, with permission. Fig….

Fig. 16.1 Pediculosis, sites affected.  Fig. 16.2 Head louse (Pediculus humanus capitis) and an empty egg casing (the operculum is at the top) attached to a hair shaft.  Fig. 16.3 Body lice eggs…

Fig. 7.1 Pustular psoriasis, generalized.  Fig. 7.2 Pustular psoriasis. Courtesy, Julie V Schaffer, MD. From Bolognia JL, Schaffer JV, Duncan KO, Ko CJ. Dermatology Essentials, 1e. Philadelphia: Saunders, 2014, with permission. Histopathology: Abundant…

Fig. 22.1 Macular amyloidosis.  Fig. 22.2 Lichen amyloidosis. A, Courtesy, Sean Christensen, MD PhD. Histopathology: Light pink, smooth deposits in the papillary dermis, often with associated pigment incontinence; deposits are larger and associated…

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….