Differential Diagnosis in Dermatopathology

Discussions

…stic of, and synonymous with bullous congenital ichthyosiform erythroderma, a widespread epidermal nevus. Subsequently, the features histopathologic of epidermolytic hyperkeratosis were noted in other nevoid conditions of the epidermis, particularly…

Differential Diagnosis in Dermatopathology

Guttate psoriasis vs. Guttate (dermatosis) parapsoriasis

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…

Differential Diagnosis in Dermatopathology

Discussions

…onfined to palms and soles, or they may be so widespread that erythroderma results. Blisters tend to form atop zones of redness and may range from tense vesicles to flaccid bullae. The concentric rings that tend to characterize lesions of erythema mu…

Differential Diagnosis in Dermatopathology

Discussions

…hue (parapsoriasis en plaques), have a yellowish cast (xanthoerythroderma perstans), show poikilodermatous features (poikiloderma vasculare atrophicans), be reticulated (parakeratosis variegata), be ellipsoid (digitate dermatosis), or be drop size (…