Search Results for: itch-scratch sequence

Therapeutic Strategies in Dermatology

Atopic Dermatitis: Treatment

…ointment to the affected areas with occlusion under plastic kitchen wrap (for localized areas). Other alternatives to occlusion in generalized disease are: sauna suit or wet wraps (2 layers of pajamas: the inner layer is moistened with water, and th…

Histologic Diagnosis of Inflammatory Skin Diseases

Identification of Basic Patterns: Skin: Fibrosing Dermatitis

…estimony to an ulcer having been present at this site as a consequence of scratching ferociously. Figure 5.353 A&B. A sign virtually diagnostic of trauma externally by curettage and electrodesiccation: calcification in a zone of degenerated colla…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Atopic Dermatitis?

…ded us that atopic dermatitis results solely from rubbing and scratching skin that is inordinately itchy for a variety of reasons. Any person, atopic or not, can produce lesions anywhere on the integument just like those of so-called atopic dermatiti…

Histologic Diagnosis of Inflammatory Skin Diseases

Nerves

…s is pruritus, defined as a sensation that evokes a desire to scratch. The mechanisms responsible for pruritus are not well understood. Itching is thought to be either a subthreshold sensation of pain or a particular sensory quality transmitted from…

Histologic Diagnosis of Inflammatory Skin Diseases

Bacillary angiomatosis

…similar to one another, are different, the latter being a consequence of infection by Bartonella bacilliformis. Cat-scratch disease, like bacillary angiomatosis, also is caused by Bartonella henselae, it affecting patients who are intact immunologic…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…s and is made up of countless organisms, akin to those of cat-scratch disease, namely, Bartonella henselae. The finding of abundant nuclear “dust” of neutrophils in a lesion that at first glance resembles a pyogenic granuloma, including t…

Histologic Diagnosis of Inflammatory Skin Diseases

Limitations of the Algorithmic Method

…ere is room for flexibility in the algorithm in regard to the sequence of steps that follows on identification of the basic pattern. Moreover, the method is acknowledged, unabashedly, to be imperfect, as is any attempt by a cerebrum that seeks to cas…

Histologic Diagnosis of Inflammatory Skin Diseases

Identification of Basic Patterns: Skin: Pustular Dermatitis

…eutrophils between bundles of collagen, the latter being a consequence of neutrophils having been spewed from an infundibulum into the dermis, a phenomenon that occurs when the wall of an infundibulum is breached (Fig. 5.313 A&B). Figure 5.308 A&…