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Differential Diagnosis in Dermatopathology

Discussions

…re present within an epithelium, examples being lichen planus, lichenoid discoid lupus erythematosus, lichenoid photodermatitis, and lichenoid gold dermatitis. In short, so-called satellite-cell necrosis is simply a necrotic keratocyte, analogous to…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Capillaritis?

“Pigmented purpuric eruptions. Under this term, three diseases are listed. It is doubtful that the division is warranted, since the most recent studies would suggest that these three divisions are each a phase or type of chronic capillaritis…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Colors Stereotypical for Diseases Specific?

“The color of skin lesions varies as already stated. … White lesions are rare excepting in exfoliative diseases, the scales of which are white. They usually result from loss of pigment. White spot disease, morphea, some of the idiopathi…

Differential Diagnosis in Dermatopathology

Erythroderma of psoriasis vs. Erythroderma of mycosis fungoides

A condition in which deposits of a fibrillary protein (amyloid) appear in the skin as macules, papules, and nodules consequent to the effects of local factors, or as patches (which may be purpuric), plaques, nodules, and tumors as a result of a syst…

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