A Clinical Atlas of 101 Common Skin Diseases

Erythema Annulare Centrifugum

An inflammatory disease characterized by lesions with arcuate, annular, and serpiginous outlines and by collarettes of scale on the inner margin of lesions that extend outward in centrifugal fashion, disappearing in months as a rule in the absence o…

Therapeutic Strategies in Dermatology

Chondrodermatitis Nodularis Helicis: Key Points

Key Points Chondrodermatitis nodularis helicis (CNH) is an uncommon, strikingly painful lesion on the helix or antihelix of the ear, which often appears as a crusted ulceration mimicking a cutaneous malignancy. Diagnosis may be made by clinical exa…

Therapeutic Strategies in Dermatology

Atopic Dermatitis: Initial Evaluation

…known as Hertoghe’s sign. Hypopigmented patches with subtle scale in atopic dermatitis, also known as pityriasis alba. Fissuring is common in the retroauricular fold. Bacterial superinfection (seen as crusting) within fissures is a common…

Therapeutic Strategies in Dermatology

Sarcoidosis: Key Points

Key Points Sarcoidosis is a multisystem inflammatory disease, characterized by non-caseating granulomas, which occurs in patients of all ages and ethnic groups. Patients require thorough evaluation for multisystem disease and close monitoring for t…

A Clinical Atlas of 101 Common Skin Diseases

Pemphigus Foliaceus

A blistering inflammatory disease in which acantholysis occurs in the upper part of the spinous zone or granular zone of the epidermis, the result of the process being flaccid blisters that give way to erosions and crusts accompanied by erythema. Wh…

Therapeutic Strategies in Dermatology

Herpes Simplex: Treatment

Treatment Table 1. Herpes Simplex Therapy for Adults N.B. Always consider renal dosing in patients with renal impairment Pattern Orofacial Genital Primary infection in immunocompetent patient ACV 400 mg 5x per day x 7-10 days or 200 mg 5x p…

Histologic Diagnosis of Inflammatory Skin Diseases

Identification of Basic Patterns: Skin: Perivascular Dermatitis

…e stages marked by spongiosis, lesions may be topped either by scale-crusts (parakeratosis with serum in variable amount) (Fig. 5.99) or by scale (parakeratosis alone) (Fig. 5.100). Figure 5.98 A&B. Chronological sequence of one type of spongi…

Histologic Diagnosis of Inflammatory Skin Diseases

Applicable Terms

…ce of vesiculopustules or pustules, both of which eventuate in crusts. They resemble impetigo histopathologically because bacteria, often in clumps, are seen to adorn crusts and scale-crusts. Pruritic spongiotic dermatitides, such as allergic contact…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…is, spongiotic + 10.98.1B: Predominance of lymphocytes and scale-crusts at lips of infundibular ostia = Seborrheic dermatitis  Mounds of scale-crust at lips of infundibular ostia are an important clue to diagnosis of seborrheic dermatitis. Spongi…