Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Primary and Secondary Lesions?

“Some of the appearances observed in cutaneous diseases are caused directly by the deposition of morbid products in the skin. These bear the name of Primary symptoms or eruptions, Efflorescentiae cutaneae primariae. But these eruptions often…

Ocular Inflammation

Ocular Inflammation

The Problem | Review of the literature | Integration | Conclusion | References   The Problem It is well known that rosacea often affects not only the skin of the face, but also the eye. For a student of dermatology it is extremely difficult to understand the relationship between a papulopustular infundibulocentric dermatitis characterized histopathologically […]

Histologic Diagnosis of Inflammatory Skin Diseases

Precepts Adjunctive to the Algorithmic Method

Certain basic concepts that pertain to the method recommended here for diagnosis of inflammatory diseases of the skin and subcutaneous fat deserve mention. First, it is advantageous to examine sections of tissue, from the very outset, without refere…

Differential Diagnosis in Dermatopathology

Discussions

Histopathologically, lesions developed fully of discoid lupus erythematosus and polymorphous light eruption have in common the presence of moderately dense infiltrates made up overwhelmingly of lymphocytes around venules of both vascular plexuses. C…

What is Rosacea?

What is Rosacea?

Rosacea is a common inflammatory facial skin disorder classically marked by flushing, facial erythema, inflammatory papules and pustules, and telangiectasias. It typically presents in adults, with prevalence reported as 1 to greater than 20%, with a…

Differential Diagnosis in Dermatopathology

Discoid lupus erythematosus vs. Polymorphous light eruption

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…