Dermatology Practical & Conceptual

Widespread pruritic papules on the trunk and extremities

The patient A 42-year-old Caucasian man presented with a 15-year history of a widespread, persistent, pruritic eruption over his trunk and extremities. He was not on medication and had no relevant family history. On physical examination, multiple di…

Histologic Diagnosis of Inflammatory Skin Diseases

Pityriasis rosea

Pityriasis rosea Synonyms Pityriasis circiné Pityriasis disseminé Pityriasis marginée et circiné Roseola annulata Roseola squamosa Presentation stereotypical Age and sex Usually young to middle-aged persons of both sexes; women especially Distributi…

Histologic Diagnosis of Inflammatory Skin Diseases

Sweet’s syndrome

Sweet’s syndrome Synonyms Acute febrile neutrophilic dermatosis Presentation stereotypical Age and sex Middle-aged persons, more often women than men Distribution of lesions Upper and lower extremities, neck, and face. Sometimes limited to dor…

Differential Diagnosis in Dermatopathology

Xanthogranuloma vs. Reticulohistiocytic granuloma

A condition of persons of any age, but particularly children with a genetic proclivity for allergic rhinitis and conjunctivitis, and allergic asthma. Intense pruritus induces patients to rub the skin intensely and to scratch furiously, the resultant…

Histologic Diagnosis of Inflammatory Skin Diseases

Blister secondary to hypoxemia and local pressure

Blister secondary to hypoxemia and local pressure Presentation stereotypical Age and sex Any age and either sex Distribution of lesions Sites of pressure Configuration of lesions Linear often, especially over wings of scapulae Individual lesions Ery…

Differential Diagnosis in Dermatopathology

Differential Diagnosis

Urticaria Urticarial lesions of bullous pemphigoid 1. Infiltrate of inflammatory cells usually sparse 1. Infiltrate of inflammatory cells usually moderately dense 2. Infiltration of inflammatory cells spares the papillary dermis and the epider…

Dermatology Practical & Conceptual

Review of Practical Dermatopathology by Ronald P. Rapini

“A Transition” Dear Readers of the Book Reviews, It is now some 10 years since I became the book review editor of Dermatopathology: Practical & Conceptual. When that journal closed and became Dermatology Practical & Conceptual, I staye…