Dermatology Practical & Conceptual

When all you have is a dermatoscope—start looking at the nails

…on typical dermatoscopic criteria (Figure 1B, e.g., subungual hematoma). In most of these cases, the clinical picture and dermatoscopic criteria will lead to a final diagnosis and further diagnostic measures will not be necessary [3-5]. However, a fo…

Dermatology Practical & Conceptual

Enlarging plaque on the face with enlarged supraorbital nerve

…erves, the sural, posterior tibial and perineal nerves, great auricular and the facial nerve. In all leprosy patients, accurate neurological examination includes testing for loss of sensation on skin lesions, palpation of commonly involved peripheral…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Chondrodermatitis Nodularis Helicis?

…pathic degenerative process involving the upper dermis of the auricular rim. Chondrodermatitis typically occurs in elderly men where associations with underlying trauma and sun exposure have been postulated as potential inciting triggers. […] I…

Histologic Diagnosis of Inflammatory Skin Diseases

Errors and Reasons

…oides acuta expression of Mucha-Habermann disease, and even a hematoma) may present themselves as “palpable purpura.” Error: Papular dermatitis of pregnancy, prurigo gestationis of Besnier, toxemic rash, autoimmune progesterone dermatitis…

Histologic Diagnosis of Inflammatory Skin Diseases

Applicable Terms

…macules and ecchymoses are hemorrhagic patches (Fig. 3.29). A hematoma is extensive hemorrhage in a somewhat discrete locus in the reticular dermis and/or the subcutaneous fat. Purpura can be classified as subsequent to inflammatory disease, as in Sc…

Dermatology Practical & Conceptual

Acral melanoma with hyperkeratosis mimicking a pigmented wart

…n showed amelanotic melanoma, one of which was diagnosed as a hematoma at first. An additional two cases [3] were diagnosed as warts at first and treated by curettage or cryotherapy. Since misdiagnosis and inadequate treatment may lead to disseminati…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Mucha-Habermann Disease a Lymphocytic Vasculitis?

…tis (the lichenoid purpura of Gougerot and Blum, as well as a hematoma, are palpable purpuras devoid of vasculitis), lesions of Mucha-Habermann disease often are misinterpreted clinically as those of vasculitis. They are not vasculitic truly because…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Palpable Purpura?

…“ecchymosis” designates a purpuric patch. “Hematoma” pertains to a localized swelling filled with blood. All too often, residents in medicine, surgery, and dermatology are unfamiliar with the usage proper of those terms, they…