A Clinical Atlas of 101 Common Skin Diseases

Preface

What prompted the undertaking of this pocket atlas of dermatology? The reasons were several and varied, among them the following: 1.  Pictures are and always have been an extraordinarily valuable vehicle in the study of clinical dermatology. The fir…

Therapeutic Strategies in Dermatology

Erythema Multiforme: Key Points

Key Points Erythema multiforme (EM) is a clinical syndrome marked by either target lesions and/or mucosal erosions. It may be idiopathic or seen in association with infections or medications. EM has been reported in association with herpes simplex…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Study By Disease

“Blue nevus” (Jadassohn-Tièche) (Quiz #360) “Blue nevus” (Jadassohn-Tièche) (Quiz #525) “Blue nevus” (Masson’s blue neuronevus) (Quiz #359) “Collagenous” nevus, papillary dermal type* (Quiz #11…

Dermatology Practical & Conceptual

From the Dermatologikum Hamburg: Quiz

The patient A 78-year-old man presented with a keratotic and crusted plaque on the scalp (Figure 1). He had a history of multiple actinic keratoses with various attempts at treatment. The lesion was excised under the clinical diagnosis of squamous c…

Differential Diagnosis in Dermatopathology

Discussions

As their names denote, herpes simplex is caused by a herpesvirus and cowpox (vaccinia) by a poxvirus. Both are DNA viruses that induce lesions in the skin that share many findings histopathologic, e.g., intraepidermal vesicles surrounded by balloone…

Differential Diagnosis in Dermatopathology

Herpes simplex vs. Vaccinia

What prompted the undertaking of this pocket atlas of dermatology? The reasons were several and varied, among them the following: 1.  Pictures are and always have been an extraordinarily valuable vehicle in the study of clinical dermatology. The fir…

Histologic Diagnosis of Inflammatory Skin Diseases

Post-inflammatory pigmentary alteration

Post-inflammatory pigmentary alteration Synonyms Postinflammatory pigmentary change Presentation stereotypical Age and sex No preference for age or sex, more prominent in dark-skinned individuals Distribution of lesions Sites of a previous dermatiti…

Histologic Diagnosis of Inflammatory Skin Diseases

Errors and Reasons

Error: Abortive is an accurate modifier of particular pathologic processes, e.g., abortive dermatofibroma, abortive morphea, and abortive T-cell lymphoma. Reason: The idea itself is abortive! For example, what is called “abortive T-cell lympho…