Dermatology
and Other Technology
, Julie Karen1 and Perry Robins1 (1) New York University School of Medicine, New York, NY, USA Laser Overview: Light Amplification by Stimulated Emission of Radiation Basic principles Laser treatment works…
Key Concepts
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….
Differential Diagnosis for Given Body Sites and Morphology
• 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…
Vesiculobullous, Numerous Lesions
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…
Psoriasiform Rashes
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,…
Case Reviews
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…
Ulcers
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…
Epidermally-Based Lesions
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,…
Dermally-Based Lesions
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….
