Plastic Surgery Key

RoundRound to polygonal rosettePolygonal rosetteSolid blackSolid color within rosetteSpots within rosette Body Site/Regional   Key Differences • Scalp – numerous anagen hair follicles with bulbs (arrows) in the fat (Fig….

• Cowden syndrome – verrucous (arrow) or smooth surfaced, may involve ears • Birt-Hogg-Dubé syndrome – smooth, monomorphous, often on ears and neck as well as central face • Syringomas…

Fig. 13.1 Bullous pemphigoid versus pemphigus vulgaris. A,B Tense blisters typical of bullous pemphigoid. The blisters are located within pink, urticarial plaques. C,D Flaccid blisters typical of pemphigus vulgaris. The base of…

Fig. 4.1 Psoriasis, plaque type, most common distribution.  Fig. 4.2 Psoriasis, plaque type. A, Courtesy, Peter C M van de Kerkhof, MD. From Bolognia JB, Jorizzo JL, Rapini RP. Dermatology, 2e. London: Saunders,…

Arterial Neuropathic/mal perforans* LocationMedial malleolar region Pressure sites (lateral malleolar region) Distal points (toes)Pressure sitesMorphology Irregular borders Yellow fibrinous base Dry, necrotic base Well-demarcated (“punched out”)“Punched out”Surrounding skin Yellow–brown to…

Fig. 24.1 Pityriasis rotunda. 63-year-old female with thyroid storm secondary to amiodarone, treated with thyroidectomy. There are circular thin plaques of scale on the back. Biopsy findings include epidermal changes (slight hyperkeratosis…

Fig. 19.1 Seborrheic keratosis.  Fig. 19.2 Solar lentigo.  Fig. 19.3 Junctional melanocytic nevus. A,B, Courtesy, Giuseppe Argenziano, MD, and Iris Zalaudek, MD. A,B, From Bolognia JL, Jorizzo JL, Schaffer JV. Dermatology, 3e. London: Saunders,…

Fig. 20.1 Similar clinical appearance of two different dermal tumors. A Infantile hemangioma. B Rhabdomyosarcoma. From Eichenfield LF, Frieden IJ, Zaenglein AL, Mathes E. Neonatal and Infant Dermatology, 3e. London: Saunders, 2014….

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…