Search Results for: psoriasis

Histologic Diagnosis of Inflammatory Skin Diseases

Syphilis

…secondary syphilis, among those being the Warthin-Starry, Levaditi, and Steiner. Although both rupial syphilis and pustular psoriasis are marked by spongiform pustules, the two diseases are differentiated easily from one another by the quality of…

Histologic Diagnosis of Inflammatory Skin Diseases

Mycosis fungoides

…e simply variations of a single process and sometimes occur together in the same patient. Not surprisingly, large-plaque parapsoriasis and small-plaque parapsoriasis, being variations on a single theme pathologic, may be present together in the same…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…s can be told to be seborrheic dermatitis because capillaries in dermal papillae are not as dilated and tortuous as those of psoriasis. Spongiosis is present in infundibular, as well as surface epidermis, and serum is more abundant than usually is…

Oyster-shaped hyperkeratotic plaques on the penis

Oyster-shaped hyperkeratotic plaques on the penis

…nemal tests, namely VDRL and TPHA as well as immunohistochemical staining for the human papillomavirus (HPV), were negative. Psoriasis verrucosa (PV) is a rare form of psoriasis, with only a few cases reported in the literature. Lesions are…

Atypical case of lichen planus recognized by dermoscopy

Atypical case of lichen planus recognized by dermoscopy

…5. PubMed CrossRef 12. Lallas A, Apalla Z, Tzellos T, Lefaki I. Photoletter to the editor: Dermoscopy in clinically atypical psoriasis. J Dermatol Case Rep 2012;6(2):61-2. PubMed CrossRef 13. Lallas A, Apalla Z, Karteridou A, Lefaki I. Photoletter…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Colors Stereotypical for Diseases Specific?

…hat dermatologists be alert to the effect of color of normal skin on the color of lesions cutaneous. For example, lesions of psoriasis in Africans, especially when situated on the legs, are purple, and if an observer is not aware of that phenomenon,…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Keratosis Lichenoides Chronica?

…ica resembles atypical lichen planus, lichen verrucosus, generalized Kyrle’s disease, Darier’s disease, and even psoriasis.” Baran R, Panizzon R, Goldberg L. The nails in keratosis lichenoides chronica: characteristics and response…

Differential Diagnosis in Dermatopathology

Discussions

…e summit of them and by little, if any, acanthosis. Apart from the consideration of dermatophytosis, the changes in eruptive psoriasis are diagnostic of that condition. Fully developed lesions of psoriasis are marked by confluent parakeratosis with…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…linical of findings like those shown here are guttate dermatosis and digitate dermatosis, together known as small-plaque parapsoriasis. In short, small-plaque parapsoriasis is synonymous with macules and ellipsoid patches of mycosis fungoides that…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Parapsoriasis?

…cal Pathology and Cytopathology, 3rd ed. New York: Churchill Livingstone, 1997:423. “There are three main types of parapsoriasis: parapsoriasis guttata (small plaque parapsoriasis), parapsoriasis lichenoides chronica and parapsoriasis en…