Search Results for: itch-scratch sequence

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Histologic Diagnosis of Inflammatory Skin Diseases

Algorithms Predicated on “Nonspecific” Findings

…bove the epidermal basal layer = Creeping eruption + Cercaria in the middle of the epidermal spinous layer = Swimmer”s itch + Wedge-shaped perivascular and interstitial infiltrate of lymphocytes and eosinophils = Insect “bite” +…

Differential Diagnosis in Dermatopathology

Discussions

…ing and their characteristics in culture indicate that they are rickettsiae of the Rochalimaea family and not bacilli of cat-scratch disease as was thought when the organisms first were detected. The name now given to the organism is Rochalimaea…

Differential Diagnosis in Dermatopathology

Pyogenic granuloma vs. Bacillary angiomatosis

Psoriasis is a chronic, immune-mediated polygenic skin disorder affecting approximately 2% of the population. The pathogenesis of psoriasis features an interplay between adaptive and innate immunity centered on interleukin 23 and T-helper 17 cells…

Histologic Diagnosis of Inflammatory Skin Diseases

Definition of Inflammation in Historical Perspective

…ccur only in tissue that is vascularized. Following injury to the skin, an organ that is vascularized richly, there ensues a sequence of responses of blood vessels of small caliber (transient vasoconstriction, arteriolar dilation, increased rate of…

Histologic Diagnosis of Inflammatory Skin Diseases

Lupus vulgaris

…us, e.g., “butterfly blush” and classic discoid, tend to be bilateral. Lupus vulgaris results from the following sequence of events: tubercle bacilli, having been inhaled, cause pulmonary tuberculosis in one or both lungs; bacilli travel…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…Spongiform pustules = Psoriasis, pustular As neutrophils traverse the epidermis, they may come to assume the appearance, in sequence, of a “Munro’s microabscess,” “spongioform pustule,” “subcorneal…

Does taping torso scars following dermatologic surgery improve scar appearance?

Does taping torso scars following dermatologic surgery improve scar appearance?

…gure 3. Taped torso wound-a descriptive photo. [Copyright: ©2013 Rosengren et al.] Randomization and blinding The allocation sequence was generated using a computerized randomization schedule at the Discipline of General Practice at The University…

Histologic Diagnosis of Inflammatory Skin Diseases

Scrofuloderma

…i, transported by copious amounts of caseous necrosis, are carried to the surface of the skin through numerous sinuses. This sequence of events is a reflection of how depressed severely is the resistance immunologic of the host to tubercle bacilli….

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…fibroplasia, in turn interspersed, among sebaceous lobules + 10.94.10C + 10.94.10D + 10.94.10E + 10.94.10F = Rhinophyma The sequence of events in this lesion of rhinophyma was rupture of infundibular cysts, suppurative peri-infundibulitis followed…

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