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A Clinical Atlas of 101 Common Skin Diseases

Urticaria Pigmentosa

A benign neoplastic process of mast cells. In children the condition manifests itself as papules, nodules, and tumors that urticate upon rubbing, and as blisters; in adults it expresses itself as macules and papules accompanied by telangiectases (te…

Therapeutic Strategies in Dermatology

Necrobiosis Lipoidica Diabeticorum: Overview

Overview Lesions of necrobiosis lipoidica diabeticorum (NLD) are usually, but not always, associated with juvenile-onset diabetes. Tending to occur singly or in crops on the anterior lower legs, they can appear anywhere on the body, however. Lesions…

Therapeutic Strategies in Dermatology

Cutaneous T-Cell Lymphoma/ Mycosis Fungoides: Overview

Overview Therapy of cutaneous T-cell lymphoma often requires specialized knowledge, and for this reason it is often appropriate to refer such patients to a medical center with specialized knowledge in the management of CTCL. Since early aggressive t…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Erythema Dyschromicum Perstans?

…; Convit J, Kerdel-Vegas F, Rodriguez G. Erythema dyschromicum perstans. J Invest Dermatol 1961;36:457–62. “Erythema dyschromicum perstans is an idiopathic, acquired, generalized, macular, ashen-gray-blue hypermelanosis that occurs in o…

Clinical Case Studies

Progressive Ascending Telangiectasia

INITIAL PRESENTATION A 49-year-old white female presented with widespread diffuse blue vessels on her lower extremities. The vessels appeared suddenly, 16 years after the birth of her third child. The vessels started on the feet and ankles, and pr…

A Clinical Atlas of 101 Common Skin Diseases

Mycosis Fungoides

A systemic lymphoma of T-lymphocytes that manifests itself first in the skin as macules and then patches that often are scaly. Most people with the disease have only scaly macules and patches for a lifetime, but some patients may develop papules, pl…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…osa is superficial, dense, and diffuse, in contrast to that of telangiectasia macularis eruptiva perstans which is superficial, perivascular, and interstitial. 11.23.5A: Diffuse dermatosis + 11.23.5B: Mast cells mostly, but also many eosino…

Histologic Diagnosis of Inflammatory Skin Diseases

Errors and Reasons

…tic vasculitis. Error: Urticaria pigmentosa, mastocytosis, and telangiectasia macularis eruptiva perstans are different names for different diseases. Reason: Urticaria pigmentosa and mastocytosis are synonyms, referring as they do to diseases of mast…

Histologic Diagnosis of Inflammatory Skin Diseases

Identification of Basic Patterns: Skin: Perivascular Dermatitis

…aria pigmentosa, especially as that disease presents itself as telangiectasia macularis eruptiva perstans (Fig. 5.152 A&B), may mimic inflammatory conditions whose pattern is perivascular and interstitial; what, at first glance, seems to be an in…

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