Therapeutic Strategies in Dermatology

Allergic Contact Dermatitis: Initial Evaluation

Initial Evaluation The presentation of allergic contact dermatitis may range from mild edema, erythema, or eczematous papules and plaques, to bright erythema with vesicles, bullae, and crusting; less e…

Therapeutic Strategies in Dermatology

Hidradenitis Suppurativa: Key Points

Key Points Hidradenitis suppurativa (HS) is a chronic inflammatory process affecting skin bearing apocrine glands; the groin, axillae, and inframammary areas are typically involved. The classic lesions of HS include cysts, nodules, sinus tracts, an…

Dermatology Practical & Conceptual

An unclear, chronic nasal ulcer

Case report A 44-year-old Brazilian man presented with an eight-month history of runny nose, hoarseness and progressive gingival swelling, which interfered greatly with nourishment and oral hygiene. The nasal lesion had appeared three years previous…

A Clinical Atlas of 101 Common Skin Diseases

Pyoderma Gangrenosum

…anifested clinically as pustules. It rapidly extends to become ulcers marked at their periphery by boggy tissue. The skin disease is associated commonly with inflammatory bowel disease, especially ulcerative colitis, and sometimes with rheumatoid art…

A Clinical Atlas of 101 Common Skin Diseases


An inflammatory process caused by Mycobacterium tuberculosis. In the skin, it may be primary as a consequence of direct inoculation (tuberculosis verrucosa cutis) or secondary to a focus of tuberculosis in another organ (the lung for lupus vulgaris,…

A Clinical Atlas of 101 Common Skin Diseases

Factitious Dermatitis

Dermatitis (and/or panniculitis) induced artificially and deliberately by a patient and characterized clinically by findings unlike those of any “authentic” disease, for example, by lesions that have sharply angulated margins, lesions that…

A Clinical Atlas of 101 Common Skin Diseases


An inflammatory process, caused by the spirochete Treponema pallidum, that tends to evolve through three stages, namely, primary (typified usually by a solitary chancre), secondary (characterized by widespread macules and papules on skin and mucous…

A Clinical Atlas of 101 Common Skin Diseases

Nodular Vasculitis

An arteritis in the subcutaneous fat manifested clinically at first by one or more red nodules that, in time, become ulcerated and heal with scars, usually on the posterior aspect of the legs of short, thick-legged women. No cause is usually found,…

A Clinical Atlas of 101 Common Skin Diseases

Chondrodermatitis Nodularis Helicis

A papule, sometimes eroded, ulcerated, crusted, or keratotic, on a helix or antehelix consequent to the effects of persistent trauma. Because a lesion of chondrodermatitis nodularis helicis results from the effects of external trauma, analogous to p…

A Clinical Atlas of 101 Common Skin Diseases

Septic Vasculitis

A small-vessel vasculitis characterized clinically by vesiculopustules on an erythematous base, purpuric macules and papules, and hemorrhagic bullae, and histopathologically by thrombi within venules, a consequence of sepsis….