Search Results for: erosion

Histologic Diagnosis of Inflammatory Skin Diseases

Lymphomatoid papulosis

…teration Spongiosis and even spongiotic vesiculation at times Erosion, ulceration, and scale-crust at times, the latter sometimes having neutrophils Monomorphous type, fully developed Wedge-shaped, superficial and deep, perivascular and interstitial…

Differential Diagnosis in Dermatopathology

Differential Diagnosis

…icles and pustules, and necrosis) uncommon 9. Evidence of injury to the epidermis (spongiosis and ballooning, intraepidermal vesicles and pustules, and necrosis) nearly invariable 10. Erosion and ulceration uncommon 10. Erosion and ulceration common…

Histologic Diagnosis of Inflammatory Skin Diseases

Radiation dermatitis and panniculitis

…r dermis Edema of the papillary dermis Epidermal necrosis and erosion or ulceration Fully developed Perivascular lymphoplasmacytic infiltrates around venules in at least the upper part of the dermis Fibrin thrombi in venules in the dermis and, someti…

Histologic Diagnosis of Inflammatory Skin Diseases

Identification of Basic Patterns: Skin: Vasculitis

…r both together in the same lesion) (Fig. 5.231 A&B), and erosion and/or ulceration (Fig. 5.232 A&B). In all three major types of small-vessel vasculitis, in addition to venules in the dermis being affected, small veins in the subcutaneous fa…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Diabetic Dermopathy?

…nd the upper dermis. Erythrocytes were found outside vessels. Erosion of the epidermis was found in some sections. In early dermopathy, the vessels in the papillary layer of skin and adipose tissue were numerous. Both melanin and hemosiderin were fou…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Primary and Secondary Lesions?

…econdary lesions, by contrast, are said to be scales, crusts, erosions, ulcers, excoriations, lichenification, and fissures. Regrettably, the concept of primary and secondary lesions is flawed beyond redemption. All so-called primary lesions of the s…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Chondrodermatitis Nodularis Helicis?

…. When animated scratching or analogous trauma supervenes, an erosion or ulceration develops, which is covered by crust. Seated beneath an ulcer or at the base of affected infundibula that may house a plug of cornified cells is a bolus of fibrin. Rub…

Differential Diagnosis in Dermatopathology

Differential Diagnosis

…ycosis fungoides, plaque 1. Papules and nodules 1. Plaques 2. Erosion and/or ulceration common 2. No erosion or ulceration usually 3. Parakeratosis often contains neutrophils 3. Ortho- and parakeratosis; no neutrophils 4. Wedge-shaped necrosis and in…

Clinical Case Studies

Graft-Versus-Host Disease

…at nine months remained asymptomatic. Figure 6. Only a small erosion is left after intraoral PUVA treatment. CONTRIBUTORS Nathan S. Uebelhoer, DO, SkinCare Physicians, Chestnut Hill, Massachusetts Andrew Bookwater, DDS, Department of Dentistry, U.S….

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Paraneoplastic Pemphigus?

…criteria to define paraneoplastic pemphigus: painful mucosal erosions and a polymorphous skin eruption, with popular lesions progressing to blisters and erosive lesions affecting the trunk, extremities, and palms and soles, in the context of an occu…